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AASTROM BIOSCIENCES INC
0000887359
10-Q
2011-06-30
false
--12-31
Yes
Smaller Reporting Company
2011
Q2
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<p style="TEXT-INDENT: 3pt; MARGIN: 0in 0in 0pt"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold" size="2">1. Organization and Summary of Significant Accounting Policies</font></b></p>
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<p style="TEXT-INDENT: 14pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Aastrom Biosciences, Inc. was incorporated in March 1989 (Inception), began employee-based operations in 1991, and is in the development stage. The Company operates its business in one reportable segment — research and product development involving the development of patient specific cell therapies for use in severe, chronic cardiovascular diseases.</font></p>
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<p style="TEXT-INDENT: 0.2in; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Successful future operations are subject to several technical hurdles and risk factors, including satisfactory product development, timely initiation and completion of clinical trials, regulatory approval and market acceptance of the Company’s therapies and the Company’s continued ability to obtain future funding.</font></p>
<p style="TEXT-INDENT: 0.2in; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 0.2in; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The Company is subject to certain risks related to the operation of its business and development of its therapies. The Company believes that it will have adequate liquidity to finance its operations, including development of its products and product candidates, via its cash and cash equivalents on hand as of June 30, 2011 until at least December 31, 2011. In addition to the current cash on hand, the Company entered into an At the Market Sales Agreement (ATM) on June 16, 2011, which allows the Company to raise approximately $20,000,000 through sales of its common stock from time to time — see Note 6 for further details. While the Company’s budgeted cash usage and operating plan for 2011 does not currently contemplate taking additional actions to reduce the use of cash over the next six months, the Company could, if necessary, delay or forego certain budgeted discretionary expenditures such as anticipated hiring plans or certain non-critical research and development expenditures, as well as slow down or delay certain clinical trial activity (without jeopardizing our Phase 3 clinical trial of ixmyelocel-T for CLI) such that the Company will have sufficient cash on hand until at least December 31, 2011. The Company could also sell shares through the ATM in order to raise additional capital. Depending on the level of usage of the ATM, the Company will need to raise additional capital by early to mid-2012 in order to fund the phase 3 clinical trial of ixmyelocel-T for CLI. On a longer term basis, additional capital will be needed to complete its product development programs, complete clinical trials needed to market its products and commercialize these products. The Company cannot be certain that such funding will be available on favorable terms, if at all. Some of the factors that will impact the Company’s ability to raise additional capital and its overall success include: the rate and degree of progress for its product development, the rate of regulatory approval to proceed with clinical trial programs, the level of success achieved in clinical trials, the requirements for marketing authorization from regulatory bodies in the United States and other countries, the liquidity and market volatility of the Company’s equity securities, regulatory and manufacturing requirements and uncertainties, technological developments by competitors, and other factors. If the Company cannot raise such funds, it may not be able to develop or enhance products, take advantage of future opportunities, or respond to competitive pressures or unanticipated requirements, which would likely have a material adverse impact on the Company’s business, financial condition and results of operations.</font></p></td></tr></table>
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<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold" size="2">2. Basis of Presentation</font></b></p>
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<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The condensed consolidated financial statements included herein have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States of America (U.S. GAAP) have been omitted pursuant to such rules and regulations. The financial statements reflect, in the opinion of management, all adjustments (consisting only of normal, recurring adjustments) necessary to state fairly the financial position and results of operations as of and for the periods indicated. The results of operations for the three and six months ended June 30, 2011, are not necessarily indicative of the results to be expected for the full year or for any other period. The December 31, 2010 condensed consolidated balance sheet data was derived from audited consolidated financial statements, but does not include all disclosures required by U.S. GAAP.</font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our Transition Report on Form 10-KT for the six month transition period ended December 31, 2010, as filed with the SEC.</font></p>
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The condensed consolidated financial statements include the accounts of Aastrom and its wholly-owned subsidiaries, Aastrom Biosciences GmbH, located in Berlin, Germany, Aastrom Biosciences Ltd., located in Dublin, Ireland, and Aastrom Biosciences, SL, located in Barcelona, Spain. All inter-company transactions and accounts have been eliminated in consolidation. The subsidiaries are not a significant component of the consolidated financial statements as each has ceased operations and had limited operations historically.</font></p></td></tr></table>
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<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold" size="2">3. Fair Value Measurements</font></b></p>
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<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The Company measures certain assets and liabilities at fair value on a recurring basis. Fair value represents the amount that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is determined based upon assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:</font></p>
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<p style="TEXT-INDENT: -0.25in; MARGIN: 0in 0in 0pt 0.5in"><font style="FONT-FAMILY: Symbol; FONT-SIZE: 10pt" size="2">·</font><font style="FONT-SIZE: 3pt" size="1"> </font> <font style="FONT-SIZE: 10pt" size="2">Level 1 inputs: Quoted prices (unadjusted) for identical assets or liabilities in active markets;</font></p>
<p style="TEXT-INDENT: -0.25in; MARGIN: 0in 0in 0pt 0.5in"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: -0.25in; MARGIN: 0in 0in 0pt 0.5in"><font style="FONT-FAMILY: Symbol; FONT-SIZE: 10pt" size="2">·</font><font style="FONT-SIZE: 3pt" size="1"> </font> <font style="FONT-SIZE: 10pt" size="2">Level 2 inputs: Inputs, other than quoted prices included in Level 1 that are observable either directly or indirectly; and</font></p>
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<p style="TEXT-INDENT: -0.25in; MARGIN: 0in 0in 0pt 0.5in"><font style="FONT-FAMILY: Symbol; FONT-SIZE: 10pt" size="2">·</font><font style="FONT-SIZE: 3pt" size="1"> </font> <font style="FONT-SIZE: 10pt" size="2">Level 3 inputs: Unobservable inputs for which there is little or no market data, which require the reporting entity to develop its own assumptions.</font></p>
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">In many cases, a valuation technique used to measure fair value includes inputs from multiple levels of the fair value hierarchy described above. The lowest level of significant input determines the placement of the entire fair value measurement in the hierarchy.</font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">At June 30, 2011, the Company had $18,344,000 invested in four money market funds with maturities of three months or less that are included within the “Cash and cash equivalents” line on the Condensed Consolidated Balance Sheet. Because there is an active market for shares in the money market funds, the Company considers its fair value measures of these investments to be based on Level 1 inputs. The valuation technique used to measure these assets is a market approach, using prices and other relevant information generated by market transactions involving identical assets.</font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">See Note 5 for disclosures related to the fair value of the Company’s warrants. The Company does not have any other assets or liabilities on the balance sheet as of June 30, 2011 that are measured at fair value.</font></p></td></tr></table>
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<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold" size="2">4. Stock-Based Compensation</font></b></p>
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<p style="TEXT-INDENT: 14pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The Company issues nonqualified and incentive stock options as well as other equity awards pursuant to its 2009 Omnibus Incentive Plan, as amended (Option Plan). Such awards pursuant to the Option Plan may be granted by the Company’s Board of Directors to certain of the Company’s employees, directors and consultants.</font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">During the six months ended June 30, 2011, the Company granted 3,675,550 service-based options to purchase common stock. These options were granted with exercise prices equal to the fair value of the Company’s stock at the grant date, vest over four years (other than 505,975 non-employee director options which vest over three years) and have lives of ten years. The weighted average grant-date fair value of service-based options granted under the Company’s Option Plan during the six months ended June 30, 2010 and 2011 was $1.10 and $1.55, respectively.</font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The net compensation costs recorded for the service-based stock options related to employees and directors were approximately $1,232,000 and $1,848,000 for the quarter and six months ended June 30, 2011, respectively, compared to $284,000 and $360,000 for the corresponding periods ended June 30, 2010. The expense for the quarter and six months ended June 30, 2010 was impacted by the reversal of expense for forfeitures in excess of the Company’s expected forfeiture rate.</font></p>
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The fair value of each service-based stock option grant for the reported periods is estimated on the date of the grant using the Black-Scholes option-pricing model using the weighted average assumptions noted in the following table.</font></p>
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<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold" size="1">Six Months Ended June 30,</font></b></p></td>
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<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold" size="1">Service-Based Stock Options</font></b></p></td>
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<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold" size="1">2010</font></b></p></td>
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<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt; FONT-WEIGHT: bold" size="1"> </font></b></p></td>
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<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold" size="1">2011</font></b></p></td>
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<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
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<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Expected dividend rate </font></p></td>
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<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">0%</font></p></td>
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<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
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<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">0%</font></p></td>
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<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Expected stock price volatility </font></p></td>
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<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">70.5% - 72.3%</font></p></td>
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<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">72.9% - 78.9%</font></p></td>
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<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 64.08%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="top" width="64%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Risk-free interest rate </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.48%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">2.4% - 3.1%</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.48%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">2.3% - 2.7%</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 0.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="0%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 64.08%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="top" width="64%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Estimated forfeiture rate (per annum) </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.48%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">10%</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.48%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">10%</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 0.96%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="0%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 64.08%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="top" width="64%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Expected life (years) </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.48%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">6.0 - 6.3</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.48%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">6.0 - 6.3</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 0.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="0%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr></table>
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The following table summarizes the activity for service-based stock options for the indicated periods:</font></p>
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<table style="WIDTH: 100%; BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%">
<tr style="HEIGHT: 0px">
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 38%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="38%">
<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold" size="1">Service-Based Stock Options</font></b></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt; FONT-WEIGHT: bold" size="1"> </font></b></p></td>
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="12%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold" size="1">Options</font></b></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt; FONT-WEIGHT: bold" size="1"> </font></b></p></td>
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="12%" colspan="2">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold" size="1">Weighted<br />
Average<br />
Exercise Price</font></b></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt; FONT-WEIGHT: bold" size="1"> </font></b></p></td>
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold" size="1">Weighted Average<br />
Remaining<br />
Contractual Term<br />
(Years)</font></b></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt; FONT-WEIGHT: bold" size="1"> </font></b></p></td>
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="12%" colspan="2">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold" size="1">Aggregate<br />
Intrinsic Value</font></b></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt; FONT-WEIGHT: bold" size="1"> </font></b></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 38%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="top" width="38%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 38%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="top" width="38%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Outstanding at December 31, 2010</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">4,297,209</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">2.43</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">8.9</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">3,158,978</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 38%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="top" width="38%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Granted</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">3,675,550</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">2.32</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="12%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 38%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="top" width="38%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Exercised</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">(9,688</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">)</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">1.80</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">9,607</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 38%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="top" width="38%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Forfeited or expired</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">(56,103</font></p></td>
<td style="PADDING-BOTTOM: 0.375pt; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">)</font></p></td>
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">4.29</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="12%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 38%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="top" width="38%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Outstanding at June 30, 2011</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">7,906,968</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">2.37</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">9.1</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">4,721,614</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 38%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="top" width="38%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Exercisable at June 30, 2011</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">1,526,080</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">3.72</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 15%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="15%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align="center"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">7.7</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.5%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 10.7%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="10%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">795,656</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1%; PADDING-RIGHT: 0in; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 1pt" size="2"> </font></p></td></tr></table>
<p style="TEXT-INDENT: 20pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">As of June 30, 2011 there was approximately $5,494,022 of total unrecognized compensation cost related to non-vested service-based stock options granted under the Option Plan. That cost is expected to be recognized over a weighted-average period of 3.4 years.</font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The total fair value of options vested during the six months ended June 30, 2010 and 2011 was $339,000 and $924,000, respectively.</font></p></td></tr></table>
<table style="font-size:10pt; font-family:'Times New Roman',times,serif;">
<tr>
<td>
<table style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman',times,serif">
<tr>
<td>
<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">5. Stock Purchase Warrants</font></b></p>
<p style="MARGIN: 0in 0in 0pt"> </p>
<p style="MARGIN: 0in 0in 0pt; TEXT-INDENT: 13.5pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">The Company has historically issued warrants to purchase shares of the Company’s common stock in connection with certain of its common stock offerings. The following warrants were outstanding at June 30, 2011, and include provisions that could require cash settlement of the warrants or have anti-dilution price protection provisions requiring each to be recorded as liabilities of the Company at the estimated fair value at the date of issuance, with changes in estimated fair value recorded as non-cash income or expense in the Company’s statement of operations in each subsequent period:</font></p>
<p style="MARGIN: 0in 0in 0pt; TEXT-INDENT: 13.5pt"> </p>
<p style="MARGIN: 0in 0in 0pt 0.75in; TEXT-INDENT: -31.5pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">(i)</font><font style="FONT-SIZE: 3pt" size="1"> </font> <font style="FONT-SIZE: 10pt" size="2">warrants to purchase an aggregate of 740,131 shares of the Company’s common stock, issued on October 17, 2007 in connection with the Company’s registered direct offering, exercisable from April 18, 2008 through April 17, 2013 at an exercise price of $12.72 per share, all of which remained outstanding as of June 30, 2011;</font></p>
<p style="MARGIN: 0in 0in 0pt 0.75in; TEXT-INDENT: -31.5pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">(ii)</font><font style="FONT-SIZE: 3pt" size="1"> </font> <font style="FONT-SIZE: 10pt" size="2">Class A warrants to purchase an aggregate of 4,882,228 shares of the Company’s common stock, issued on January 21, 2010 in connection with the Company’s registered public offering, exercisable for a five year period commencing on July 21, 2010 at an exercise price of $2.52 per share (as adjusted from $2.97 per share for the anti-dilution provision triggered in the December 2010 financing), 4,525,978 of which remained outstanding as of June 30, 2011; and</font></p>
<p style="MARGIN: 0in 0in 0pt 0.75in; TEXT-INDENT: -31.5pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">(iii)</font><font style="FONT-SIZE: 3pt" size="1"> </font> <font style="FONT-SIZE: 10pt" size="2">warrants to purchase an aggregate of 10,000,000 shares of the Company’s common stock, issued on </font><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">December 15, 2010 in connection with the Company’s registered public offering, exercisable for a five year period commencing on December 15, 2010 at an exercise price of $3.22 per share, all of which remained outstanding as of June 30, 2011.</font></p>
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p>
<p style="MARGIN: 0in 0in 0pt; TEXT-INDENT: 13.5pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">The Class A warrants and the December 2010 warrants are measured using the Monte Carlo valuation model, while the October 2007 warrants are measured using the Black-Scholes valuation model. Both of the methodologies are based, in part, upon inputs for which there is little or no observable market data, requiring the Company to develop its own assumptions. The assumptions used in calculating the estimated fair value of the warrants represent the Company’s best estimates, however these estimates involve inherent uncertainties and the application of management judgment. As a result, if factors change and different assumptions are used, the warrant liabilities and the change in estimated fair value of the warrants could be materially different.</font></p>
<p style="MARGIN: 0in 0in 0pt; TEXT-INDENT: 13.5pt"> </p>
<p style="MARGIN: 0in 0in 0pt; TEXT-INDENT: 13.5pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Inherent in both the Monte Carlo and Black-Scholes valuation models are assumptions related to expected stock-price volatility, expected life, risk-free interest rate and dividend yield. The Company estimates the volatility of its common stock based on historical volatility that matches the expected remaining life of the warrants. The risk-free interest rate is based on the U.S. Treasury zero-coupon yield curve on the grant date for a maturity similar to the expected remaining life of the warrants. The expected life of the warrants is assumed to be equivalent to their remaining contractual term. The dividend rate is based on the historical rate, which the Company anticipates to remain at zero.</font></p>
<p style="MARGIN: 0in 0in 0pt; TEXT-INDENT: 13.5pt"> </p>
<p style="MARGIN: 0in 0in 0pt; TEXT-INDENT: 13.5pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">The Monte Carlo model is used for the Class A warrants and the December 2010 warrants to value the potential future exercise price adjustments triggered by the anti-dilution provisions as well as the value of the put feature of the December 2010 warrants. These both require Level 3 inputs which are based on the Company’s estimates of the probability and timing of potential future financings and fundamental transactions. The other assumptions used by the Company are summarized in the following tables:</font></p>
<p style="MARGIN: 0in 0in 0pt"> </p>
<table style="MARGIN-LEFT: 0.2in; WIDTH: 70.68%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="70%" border="0">
<tr style="HEIGHT: 0px">
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 51.86%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="51%">
<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">October 2007 Warrants</font></b></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 19.8%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">December 31, 2010</font></b></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 19.8%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">June 30, 2011</font></b></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.42%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 51.86%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="top" width="51%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Closing stock price</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 1.3%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">$</font></p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 18.5%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="18%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">2.56</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 1.3%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">$</font></p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 18.5%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="18%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">2.75</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.42%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 51.86%; PADDING-TOP: 0in" valign="top" width="51%">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Expected dividend rate</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">0</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">0</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.42%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 51.86%; PADDING-TOP: 0in" valign="top" width="51%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Expected stock price volatility</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">100.3</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">84.8</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.42%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 51.86%; PADDING-TOP: 0in" valign="top" width="51%">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Risk-free interest rate</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">0.6</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">0.5</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.42%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 51.86%; PADDING-TOP: 0in" valign="top" width="51%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Expected life (years)</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">2.25</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.56%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">1.75</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.42%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="274"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="18"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="6"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="97"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="18"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="6"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="97"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="11"></td></tr></table>
<p style="MARGIN: 0in 0in 0pt"> </p>
<table style="MARGIN-LEFT: 0.2in; WIDTH: 70.68%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="70%" border="0">
<tr style="HEIGHT: 0px">
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 51.94%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="51%">
<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">January 2010 Class A Warrants</font></b></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 19.8%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">December 31, 2010</font></b></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 19.8%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">June 30, 2011</font></b></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 51.94%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="top" width="51%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Closing stock price</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 1.3%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">$</font></p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 18.5%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="18%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">2.56</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 1.3%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">$</font></p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 18.5%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="18%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">2.75</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 51.94%; PADDING-TOP: 0in" valign="top" width="51%">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Expected dividend rate</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">0</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">0</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 51.94%; PADDING-TOP: 0in" valign="top" width="51%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Expected stock price volatility</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">79.6</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">83.5</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 51.94%; PADDING-TOP: 0in" valign="top" width="51%">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Risk-free interest rate</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">1.8</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">1.3</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 51.94%; PADDING-TOP: 0in" valign="top" width="51%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Expected life (years)</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">4.56</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">4.06</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="274"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="18"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="6"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="97"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="18"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="6"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="97"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="11"></td></tr></table>
<p style="MARGIN: 0in 0in 0pt"> </p>
<table style="MARGIN-LEFT: 0.2in; WIDTH: 70.68%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="70%" border="0">
<tr style="HEIGHT: 0px">
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 51.94%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="51%">
<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">December 2010 Warrants</font></b></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 19.8%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">December 31, 2010</font></b></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 19.8%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">June 30, 2011</font></b></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 51.94%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="top" width="51%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Closing stock price</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 1.3%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">$</font></p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 18.5%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="18%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">2.56</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 1.3%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">$</font></p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 18.5%; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" valign="bottom" width="18%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">2.75</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 51.94%; PADDING-TOP: 0in" valign="top" width="51%">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Expected dividend rate</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">0</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">0</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 51.94%; PADDING-TOP: 0in" valign="top" width="51%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Expected stock price volatility</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">78.0</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">80.2</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 51.94%; PADDING-TOP: 0in" valign="top" width="51%">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Risk-free interest rate</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">2.0</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">1.5</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">%</font></p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 51.94%; PADDING-TOP: 0in" valign="top" width="51%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Expected life (years)</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.54%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">4.96</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 3.52%; PADDING-TOP: 0in" valign="bottom" width="3%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 19.8%; PADDING-TOP: 0in" valign="bottom" width="19%" bgcolor="#CCEEFF" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">4.46</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.4%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="274"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="18"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="6"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="97"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="18"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="6"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="97"></td>
<td style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width="11"></td></tr></table>
<p style="MARGIN: 0in 0in 0pt"> </p>
<p style="MARGIN: 0in 0in 0pt; TEXT-INDENT: 13.5pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">The following table summarizes the change in the estimated fair value of the Company’s warrant liabilities <i>(in thousands)</i>:</font></p>
<p style="MARGIN: 0in 0in 0pt"> </p>
<table style="MARGIN-LEFT: 0.2in; WIDTH: 57.34%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="57%" border="0">
<tr style="HEIGHT: 0px">
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<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman" size="1">Warrant Liabilities</font></b></p></td>
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<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td>
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<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td>
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<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"> </p></td></tr>
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<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Balance at December 31, 2010</font></p></td>
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<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.22%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">$</font></p></td>
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<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">25,954</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 1.76%; PADDING-TOP: 0in" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 72.94%; PADDING-TOP: 0in" valign="top" width="72%">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Increase in fair value</font></p></td>
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<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 20.94%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid" valign="bottom" width="20%" colspan="2">
<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">1,210</font></p></td>
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; WIDTH: 1.76%; PADDING-TOP: 0in" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt"> </p></td></tr>
<tr style="HEIGHT: 0px">
<td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; WIDTH: 72.94%; PADDING-TOP: 0in" valign="top" width="72%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt 20pt; TEXT-INDENT: -10pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">Balance at June 30, 2011</font></p></td>
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<p style="MARGIN: 0in 0in 0pt"> </p></td>
<td style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; BACKGROUND: #cceeff; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 1.22%; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 2.25pt double" valign="bottom" width="1%" bgcolor="#CCEEFF">
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">$</font></p></td>
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<p style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: right" align="right"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman" size="2">27,164</font></p></td></tr></table></td></tr></table></td></tr></table>
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<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold" size="2">6. Shareholders’ Equity</font></b></p>
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 14pt; MARGIN: 0in 0in 0pt"><b><i><font style="FONT-STYLE: italic; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold" size="2">At the Market Sales Agreement</font></i></b></p>
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">On June 16, 2011, the Company entered into an At the Market Sales Agreement (ATM) with McNicoll, Lewis & Vlak LLC (MLV), pursuant to which the Company may sell shares of its common stock through MLV, as sales agent, in registered transactions from its shelf registration statement filed in November 2010, for aggregate proceeds of up to $20,300,000. Shares of common stock sold under the ATM are to be sold at market prices. The Company will pay up to 3% of the gross proceeds to MLV as a commission. As of June 30, 2011, the Company had not sold any shares under the ATM.</font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><b><i><font style="FONT-STYLE: italic; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold" size="2">Shareholder Rights Plan</font></i></b></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">On August 11, 2011, the Board of Directors of the Company adopted a Shareholder Rights Plan, as set forth in the Shareholder Rights Agreement between the Company and the rights agent, the purpose of which is, among other things, to enhance the Board’s ability to protect shareholder interests and to ensure that shareholders receive fair treatment in the event any coercive takeover attempt of the Company is made in the future. The Shareholder Rights Plan could make it more difficult for a third party to acquire, or could discourage a third party from acquiring, the Company or a large block of the Company’s common stock. The following summary description of the Shareholder Rights Plan does not purport to be complete and is qualified in its entirety by reference to the Company’s Shareholder Rights Plan, which has been filed with the Securities and Exchange Commission as an exhibit to a Registration Statement on Form 8-A.</font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">In connection with the adoption of the Shareholder Rights Plan, the Board of Directors of the Company declared a dividend distribution of one preferred stock purchase right (a “Right”) for each outstanding share of common stock to stockholders of record as of the close of business on August 15, 2011. In addition, one Right will automatically attach to each share of common stock issued between August 15, 2011 and the distribution date. The Rights currently are not exercisable and are attached to and trade with the outstanding shares of common stock. Under the Shareholder Rights Plan, the Rights become exercisable if a person or group becomes an “acquiring person” by acquiring 15% or more of the outstanding shares of common stock or if a person or group commences a tender offer that would result in that person owning 15% or more of the common stock. If a person or group becomes an “acquiring person,” each holder of a Right (other than the acquiring person and its affiliates, associates and transferees) would be entitled to purchase, at the then-current exercise price, such number of shares of the Company’s preferred stock which are equivalent to shares of common stock having a value of twice the exercise price of the Right. If the Company is acquired in a merger or other business combination transaction after any such event, each holder of a Right would then be entitled to purchase, at the then-current exercise price, shares of the acquiring company’s common stock having a value of twice the exercise price of the Right.</font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">The Rights may be redeemed in whole, but not in part, at a price of $0.001 per Right (payable in cash, common stock or other consideration deemed appropriate by the Board of Directors) by the Board of Directors only until the earlier of (i) the time at which any person becomes an “acquiring person” or (ii) the expiration date of the Rights Agreement. Immediately upon the action of the Board of Directors ordering redemption of the Rights, the Right will terminate and thereafter the only right of the holders of Rights will be to receive the redemption price. The Rights will expire at the close of business on August 15, 2021, unless previously redeemed or exchanged by the Company as described above.</font></p></td></tr></table>
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<p style="MARGIN: 0in 0in 0pt"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold" size="2">7. Net Loss Per Common Share</font></b></p>
<p style="MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2"> </font></p>
<p style="TEXT-INDENT: 13.5pt; MARGIN: 0in 0in 0pt"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt" size="2">Net loss per common share is computed using the weighted-average number of common shares outstanding during the period. Common equivalent shares are not included in the diluted per share calculation where the effect of their inclusion would be anti-dilutive. The aggregate number of common equivalent shares (related to options and warrants) that have been excluded from the computations of diluted net loss per common share at June 30, 2010 and 2011 were 12,200,500 and 23,209,500, respectively.</font></p></td></tr></table>
31248000
18521000
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