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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
Sales | $ 341,612 | $ 271,498 | $ 304,296
Cost of goods sold | 202,163 | 157,022 | 171,196
Gross profit | 139,449 | 114,476 | 133,100
Operating expenses: |  |  |
Research and development and engineering | 26,352 | 22,393 | 23,454
Selling, general and administrative | 81,449 | 65,584 | 67,877
Amortization of purchased intangible assets | 7,270 | 2,650 | 3,515
Restructuring, restatement related costs, post-emergence fees and other | 6,687 | 8,842 | 2,406
Total operating expenses | 121,758 | 99,469 | 97,252
Income from operations | 17,691 | 15,007 | 35,848
Interest expense, net | (3,455) | (2,788) | (12,977)
Foreign exchange transaction gains (losses), net | (1,208) | (1,267) | 172
Other income (expense), net | 1,502 | 582 | 1,177
Income from continuing operations before income taxes | 14,530 | 11,534 | 24,220
Income tax provision (benefit) | 5,680 | (10,940) | 2,544
Income from continuing operations | 8,850 | 22,474 | 21,676
Income (loss) from discontinued operations, net of tax | (927) | (5,151) | 7,325
Gain (loss) on disposal of discontinued operations, net of tax | (592) | 2,255 |
Consolidated net income | 7,331 | 19,578 | 29,001
Less: Net income attributable to noncontrolling interest | (22) | (40) | (28)
Net income attributable to GSI Group Inc. | 7,309 | 19,538 | 28,973
Earnings per common share from continuing operations: |  |  |
Basic | $ 0.26 | $ 0.66 | $ 0.65
Diluted | $ 0.26 | $ 0.66 | $ 0.64
Earnings (Loss) per common share from discontinued operations: |  |  |
Basic | $ (0.05) | $ (0.08) | $ 0.22
Diluted | $ (0.05) | $ (0.08) | $ 0.22
Earnings per common share attributable to GSI Group Inc.: |  |  |
Basic | $ 0.21 | $ 0.58 | $ 0.87
Diluted | $ 0.21 | $ 0.58 | $ 0.86
Weighted average common shares outstanding-basic | 34,073 | 33,775 | 33,481
Weighted average common shares outstanding-diluted | 34,396 | 33,936 | 33,589
Amounts attributable to GSI Group Inc.: |  |  |
Income from continuing operations | 8,828 | 22,434 | 21,648
Income (loss) from discontinued operations | (1,519) | (2,896) | 7,325
Net income attributable to GSI Group Inc. | $ 7,309 | $ 19,538 | $ 28,973

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