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Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract] |
Summary of Quarterly Financial Data | The following financial information reflects all normal recurring adjustments, which are, in the opinion of management, necessary for a fair statement of the results of the interim periods. Summarized quarterly data for fiscal 2015 and 2014 are as follows (in thousands, except per share data):
| Year ended December 31, 2015
| 1st Quarter |  | 2nd Quarter |  | 3rd Quarter |  | 4th Quarter
Selected quarterly financial data: |  |  |  |  |  |  |
Revenue | $ | 48,647 |  |  | $ | 46,633 |  |  | $ | 42,996 |  |  | $ | 47,003 |
Gross profit | 32,943 |  |  | 27,527 |  |  | 28,479 |  |  | 31,135 |
Total operating expenses | 31,801 |  |  | 30,354 |  |  | 193,427 |  |  | 36,941 |
Net loss | (4,561 | ) |  | (3,947 | ) |  | (160,265 | ) |  | (9,903 | )
Net loss per basic share (1) | (0.05 | ) |  | (0.04 | ) |  | (1.61 | ) |  | (0.10 | )
Net loss per diluted share (1) | (0.05 | ) |  | (0.04 | ) |  | (1.61 | ) |  | (0.10 | )
| Year ended December 31, 2014
| 1st Quarter |  | 2nd Quarter |  | 3rd Quarter |  | 4th Quarter
Selected quarterly financial data: |  |  |  |  |  |  |
Revenue | $ | 49,173 |  |  | $ | 53,167 |  |  | $ | 51,013 |  |  | $ | 53,627 |
Gross profit | 33,294 |  |  | 36,120 |  |  | 36,306 |  |  | 37,690 |
Total operating expenses | 37,996 |  |  | 34,279 |  |  | 34,574 |  |  | 34,717 |
Net loss | (6,673 | ) |  | (2,895 | ) |  | (3,041 | ) |  | (273 | )
Net loss per basic share (1) | (0.07 | ) |  | (0.03 | ) |  | (0.03 | ) |  | 0.00 |
Net loss per diluted share (1) | (0.07 | ) |  | (0.03 | ) |  | (0.04 | ) |  | (0.03 | )
(1) | Basic and diluted net loss per share is computed independently for each of the quarters presented. Therefore, the sum of the quarterly per share amounts will not necessarily equal the total for the year.

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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=51825399&loc=d3e1280-108306 + Details
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