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Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Statements of Operations [Abstract] |  |  |  |
Net revenues | $ 1,076 | $ 1,679 | $ 2,708 | $ 4,817
Cost of revenues | 765 | 337 | 1,443 | 1,080
Gross margin | 311 | 1,342 | 1,265 | 3,737
Operating expenses: |  |  |  |
Product research and development | 2,211 | 1,451 | 5,286 | 3,616
Sales and marketing | 406 | 920 | 2,104 | 3,437
General and administrative | 972 | 1,086 | 3,813 | 3,772
Total operating expenses | 3,589 | 3,457 | 11,203 | 10,825
Loss before provision for income taxes | (3,278) | (2,115) | (9,938) | (7,088)
Provision for income taxes | 65 | 29 | 95 | 71
Net loss | $ (3,343) | $ (2,144) | $ (10,033) | $ (7,159)
Loss per common share: |  |  |  |
Basic and diluted loss per share | $ (0.09) | $ (0.06) | $ (0.29) | $ (0.22)
Basic and diluted - weighted average number of common shares outstanding | 35,437 | 33,021 | 34,366 | 32,934

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