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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2011
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | 15. Net Loss Per Share Basic net loss per common share for the years ended December 31, 2011 and 2010 was computed by dividing the net loss for the relevant period by the weighted average number of shares of common stock outstanding. Diluted loss per common share is computed by dividing net loss by the weighted average number of shares of common stock and common stock equivalents outstanding. Potential common stock equivalents of approximately 5.4 million and 5.1 million outstanding stock warrants, 55,000 and 100,000 shares issuable upon conversion of preferred stock and 0 and 0.2 million shares issuable upon conversion of notes are excluded from the diluted earnings per share calculation for the year ended December 31, 2011 and 2010, respectively, due to their anti-dilutive effect.
(in thousands, except per share amounts) |  | Year ended December 31, |
|  | 2011 |  |  | 2010 |
BASIC AND DILUTED |  |  |  |  |  |
Weighted average number of |  |  |  |  |  |
common shares outstanding |  |  | 26,784 |  |  |  | 18,293 |
Net loss |  | $ | (17,145 | ) |  | $ | (31,626 | )
Net loss per share basic and diluted |  | $ | (0.64 | ) |  | $ | (1.73 | )

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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=6920599&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=6945512&loc=d3e4984-109258 Reference 3: 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FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 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=6920599&loc=d3e1278-109256 Reference 5: 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 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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