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U. SELECTED QUARTERLY FINANCIAL DATA (Tables) | 12 Months Ended
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Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract] |
Selected Quarterly Financial Data | The following tables set forth a summary of the Company’s quarterly financial information for each of the four quarters for the years ended December 31, 2013 and 2012.
|  | First |  |  | Second |  |  | Third |  |  | Fourth |
Year ended December 31, 2012 |  | Quarter |  |  | Quarter |  |  | Quarter |  |  | Quarter |
|  | (in thousands, except percentages, share and per share data) |
Revenue |  | $ | 12,506 |  |  | $ | 15,638 |  |  | $ | 16,416 |  |  | $ | 18,861 |
Cost of goods sold |  |  | 8,393 |  |  |  | 10,938 |  |  |  | 11,743 |  |  |  | 13,418 |
Gross profit |  | $ | 4,113 |  |  | $ | 4,700 |  |  | $ | 4,673 |  |  | $ | 5,443 |
Gross margin |  |  | 32.9% |  |  |  | 30.1% |  |  |  | 28.5% |  |  |  | 28.9% |
Operating expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and development |  | $ | 1,574 |  |  | $ | 1,708 |  |  | $ | 2,178 |  |  | $ | 2,144 |
Sales and marketing |  |  | 814 |  |  |  | 806 |  |  |  | 759 |  |  |  | 756 |
General and administrative |  |  | 1,961 |  |  |  | 1,947 |  |  |  | 1,892 |  |  |  | 2,213 |
Total operating expenses |  | $ | 4,349 |  |  | $ | 4,460 |  |  | $ | 4,829 |  |  | $ | 5,112 |
Income (loss) from operations |  | $ | (236 | ) |  | $ | 240 |  |  | $ | (156 | ) |  | $ | 331 |
Interest and other income (expense), net |  |  | (287 | ) |  |  | (332 | ) |  |  | (225 | ) |  |  | (280 | )
Net income (loss) |  | $ | (523 | ) |  | $ | (92 | ) |  | $ | (381 | ) |  | $ | 51 |
Net loss per share—basic, as revised |  | $ | (1.97 | ) |  | $ | (0.35 | ) |  | $ | (1.43 | ) |  | $ | 0.20 |
Net loss per share—diluted, as revised |  | $ | (1.97 | ) |  | $ | (0.35 | ) |  | $ | (1.43 | ) |  | $ | 0.07 |
Weighted average shares used to compute net loss per share, as revised: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 265,168 |  |  |  | 265,590 |  |  |  | 265,920 |  |  |  | 265,920 |
Diluted |  |  | 265,168 |  |  |  | 265,590 |  |  |  | 265,920 |  |  |  | 695,241 |
|  | First |  |  | Second |  |  | Third |  |  | Fourth |
Year ended December 31, 2013 |  | Quarter |  |  | Quarter |  |  | Quarter |  |  | Quarter |
|  | (in thousands, except percentages, share and per share data) |
Revenue |  | $ | 14,317 |  |  | $ | 19,597 |  |  | $ | 20,766 |  |  | $ | 23,744 |
Cost of goods sold |  |  | 9,732 |  |  |  | 14,150 |  |  |  | 14,445 |  |  |  | 17,068 |
Gross profit |  | $ | 4,585 |  |  | $ | 5,447 |  |  | $ | 6,321 |  |  | $ | 6,676 |
Gross margin |  |  | 32.0% |  |  |  | 27.8% |  |  |  | 30.4% |  |  |  | 28.1% |
Operating expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and development |  | $ | 2,004 |  |  | $ | 1,898 |  |  | $ | 2,211 |  |  | $ | 2,400 |
Sales and marketing |  |  | 907 |  |  |  | 1,053 |  |  |  | 1,034 |  |  |  | 1,198 |
General and administrative |  |  | 2,374 |  |  |  | 2,447 |  |  |  | 2,435 |  |  |  | 3,375 |
Total operating expenses |  | $ | 5,285 |  |  | $ | 5,398 |  |  | $ | 5,680 |  |  | $ | 6,973 |
Income (loss) from operations |  | $ | (700 | ) |  | $ | 49 |  |  | $ | 641 |  |  | $ | (297 | )
Interest and other income (expense), net |  |  | (294 | ) |  |  | (331 | ) |  |  | (250 | ) |  |  | (223 | )
Net income (loss) |  | $ | (994 | ) |  | $ | (282 | ) |  | $ | 390 |  |  | $ | (520 | )
Net loss per share—basic, as revised |  | $ | (3.74 | ) |  | $ | (1.04 | ) |  | $ | 0.04 |  |  | $ | (0.04 | )
Net loss per share—diluted, as revised |  | $ | (3.74 | ) |  | $ | (1.04 | ) |  | $ | 0.04 |  |  | $ | (0.04 | )
Weighted average shares used to compute net loss per share, as revised: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 265,920 |  |  |  | 270,912 |  |  |  | 8,995,397 |  |  |  | 12,630,603 |
Diluted |  |  | 265,920 |  |  |  | 270,912 |  |  |  | 9,154,692 |  |  |  | 12,630,603 |

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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=25249566&loc=d3e1280-108306 + Details
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