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Loss Per Share | 3 Months Ended
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Mar. 31, 2013
Loss Per Share | Note 8 —Loss Per Share The following table is a reconciliation of the weighted average shares used in the computation of loss per share for the periods presented (in thousands, except per share data):
|  | Three Months Ended March 31, |
|  | 2012 |  |  | 2013 |
|  | Loss |  |  | Weighted Average Shares |  |  | Per-Share |  |  | Loss |  |  | Weighted Average Shares |  | Per- Share |
Loss per share – basic |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss available to common stockholders |  | $ | (16,000) |  |  |  | 25,831 |  |  | $ | (0.62) |  |  | $ | (27,562) |  |  |  | 21,873 |  |  | $ | (1.26) |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible senior notes |  |  | – |  |  |  |  |  |  |  |  |  |  |  | – |  |  |  |  |  |  |  |  |
Options and warrants |  |  | – |  |  |  |  |  |  |  |  |  |  |  | – |  |  |  |  |  |  |  |  |
Unvested restricted stock grants |  |  | – |  |  |  |  |  |  |  |  |  |  |  | – |  |  |  |  |  |  |  |  |
Loss per share – diluted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss available to common stockholders plus assumed exercises and conversion |  | $ | (16,000) |  |  |  | 25,831 |  |  | $ | (0.62) |  |  | $ | (27,562) |  |  |  | 21,873 |  |  | $ | (1.26) |
Basic earnings per share is calculated using the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated using the weighted average number of common shares and common share equivalents outstanding during the period (which consist of warrants, options and convertible debt to the extent they are dilutive). Common share equivalents that could potentially dilute basic earnings per share in the future, which were excluded from the computation of diluted loss per share, totaled approximately 240,265 and 417,207 for the three months ended March 31, 2012 and 2013, respectively.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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