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Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Revenues: |  |  |
Services | $ 398,682 | $ 490,078 | $ 797,982
Products | 148,073 | 90,684 | 12,973
Total revenues | 546,755 | 580,762 | 810,955
Contract costs: |  |  |
Services | 368,540 | 466,481 | 762,289
Products | 122,146 | 72,991 | 8,739
Total contract costs | 490,686 | 539,472 | 771,028
Selling, general and administrative expenses | 3,968 | 5,213 | 1,987
Impairment of intangible assets | 1,025 | 0 | 0
Operating income | 51,076 | 36,077 | 37,940
Interest expense, net | 7,224 | 3,685 | 199
Income before income taxes | 43,852 | 32,392 | 37,741
Provision for income taxes | 16,488 | 12,202 | 14,236
Income from continuing operations | 27,364 | 20,190 | 23,505
(Loss) income from discontinued operations, net of tax | (6,070) | 362 | 182
Net income | $ 21,294 | $ 20,552 | $ 23,687
Basic earnings per share: |  |  |
Income from continuing operations (in dollars per share) | $ 5.18 | $ 3.86 | $ 4.53
(Loss) income from discontinued operations (in dollars per share) | $ (1.15) | $ 0.07 | $ 0.03
Net income (in dollars per share) | $ 4.03 | $ 3.93 | $ 4.56
Basic weighted average shares outstanding (in shares) | 5,282,047 | 5,232,055 | 5,189,263
Diluted earnings per share: |  |  |
Income from continuing operations (in dollars per share) | $ 5.15 | $ 3.83 | $ 4.50
(Loss) income from discontinued operations (in dollars per share) | $ (1.14) | $ 0.07 | $ 0.03
Net income (in dollars per share) | $ 4.01 | $ 3.90 | $ 4.53
Diluted weighted average shares outstanding (in shares) | 5,309,862 | 5,267,857 | 5,219,234
Dividends declared per share (in dollars per share) | $ 0.23 | $ 0.27 | $ 0.31

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