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Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Income Statement [Abstract] |  |  |
Net revenues | $ 199,160 | $ 218,507 | $ 252,968
Cost of revenues | 117,681 | 126,856 | 146,274
Gross margin | 81,479 | 91,651 | 106,694
Operating expenses: |  |  |
Selling, general and administrative | 60,737 | 55,655 | 54,041
Research and development | 39,848 | 38,744 | 38,967
Severance charges | 1,361 |  |
Impairment of goodwill |  | 2,012 |
Gain from litigation-related settlement |  | (1,975) |
Total operating expenses | 101,946 | 94,436 | 93,008
Income (loss) from operations | (20,467) | (2,785) | 13,686
Other income, net: |  |  |
Total unrealized gains (losses) on available-for-sale securities, net | (54) | 511 | 1,206
Portion of losses recognized in other comprehensive income (loss) | (24) | (520) | (904)
Net credit (losses) gains recognized in earnings | (78) | (9) | 302
Other income, net | 80 | 203 | 44
Total other income, net | 2 | 194 | 346
Income (loss) before income taxes | (20,465) | (2,591) | 14,032
Provision for income taxes | 3,039 | 1,207 | 4,723
Consolidated net income (loss) | (23,504) | (3,798) | 9,309
Less: Net income attributable to noncontrolling interest | 136 | 279 | 466
Net income (loss) attributable to Vicor Corporation | $ (23,640) | $ (4,077) | $ 8,843
Net income (loss) per common share attributable to Vicor Corporation: |  |  |
Basic | $ (0.60) | $ (0.10) | $ 0.21
Diluted | $ (0.60) | $ (0.10) | $ 0.21
Shares used to compute net income (loss) per common share attributable to Vicor Corporation: |  |  |
Basic | 39,195 | 41,811 | 41,797
Diluted | 39,195 | 41,811 | 41,856
Cash dividends declared per share |  |  | $ 0.15

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