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Quarterly Information (unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2012
Quarterly Information (unaudited) [Abstract] |
Unaudited Quarterly Financial Information | The following unaudited quarterly financial information includes, in management's opinion, all the normal and recurring adjustments necessary to fairly state the results of operations and related information for the periods presented.
|  | For the three months ended |
|  | March 31, 2012 |  |  | June 30, 2012 |  |  | September 30, 2012 |  |  | December 31, 2012 |
Product revenues |  | $ | 1,481,000 |  |  | $ | 1,947,000 |  |  | $ | 1,314,000 |  |  | $ | 3,967,000 |
Gross profit |  |  | 628,000 |  |  |  | 915,000 |  |  |  | 611,000 |  |  |  | 2,555,000 |
Development revenues |  |  | 3,000 |  |  |  | 2,429,000 |  |  |  | 2,000 |  |  |  | 3,358,000 |
Operating expenses |  |  | 8,996,000 |  |  |  | 10,304,000 |  |  |  | 10,945,000 |  |  |  | 8,674,000 |
Other income (expense) |  |  | (960,000 | ) |  |  | (923,000 | ) |  |  | (916,000 | ) |  |  | (1,062,000 | )
Net loss |  | $ | (9,325,000 | ) |  | $ | (7,883,000 | ) |  | $ | (11,248,000 | ) |  | $ | (3,823,000 | )
Basic and diluted net loss per share |  | $ | (0.16 | ) |  | $ | (0.13 | ) |  | $ | (0.19 | ) |  | $ | (0.06 | )
|  | For the three months ended |
|  | March 31, 2011 |  |  | June 30, 2011 |  |  | September 30, 2011 |  |  | December 31, 2011 |
Product revenues |  | $ | 1,362,000 |  |  | $ | 2,411,000 |  |  | $ | 2,134,000 |  |  | $ | 2,076,000 |
Gross profit |  |  | 520,000 |  |  |  | 1,302,000 |  |  |  | 1,192,000 |  |  |  | 1,132,000 |
Development revenues |  |  | 1,235,000 |  |  |  | 11,000 |  |  |  | 5,000 |  |  |  | 762,000 |
Operating expenses |  |  | 12,998,000 |  |  |  | 5,685,000 |  |  |  | 9,020,000 |  |  |  | 7,868,000 |
Other income (expense) |  |  | (829,000 | ) |  |  | (766,000 | ) |  |  | (512,000 | ) |  |  | (932,000 | )
Net loss |  | $ | (12,072,000 | ) |  | $ | (5,138,000 | ) |  | $ | (8,335,000 | ) |  | $ | (6,906,000 | )
Basic and diluted net loss per share |  | $ | (0.23 | ) |  | $ | (0.10 | ) |  | $ | (0.15 | ) |  | $ | (0.13 | )

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306 + Details
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