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U. SELECTED QUARTERLY FINANCIAL DATA | 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 The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305 Reference 3: 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 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a + Details
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