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Basis of Presentation (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Summary of computation of basic and diluted net income (loss) per share |  |  |  |  |  |  |  |  |  |  |
Net income (loss) from continuing operations | $ 1,869 | $ 1,965 | $ 3,694 | $ 1,304 | $ 2,586 | $ (194) | $ (4,328) | $ (738) | $ 8,832 | $ (2,674) | $ 9,712
Discontinued operations |  |  |  |  |  |  |  |  | 2,588 | 2,147 | 3
Net income (loss) | $ 1,869 | $ 1,965 | $ 6,091 | $ 1,495 | $ 1,063 | $ (194) | $ (2,529) | $ 1,133 | $ 11,420 | $ (527) | $ 9,715
Shares used to compute basic income (loss) per share |  |  |  |  |  |  |  |  | 20,312,395 | 19,853,095 | 19,655,632
Dilutive potential common shares: |  |  |  |  |  |  |  |  |  |  |
Restricted stock |  |  |  |  |  |  |  |  | 352,959 |  |
Stock options |  |  |  |  |  |  |  |  | 80,100 |  | 57,688
Shares used to compute diluted income (loss) per share | 21,056,156,000 | 20,843,742,000 | 20,427,360,000 | 20,280,030,000 | 20,124,331,000 | 19,917,676,000 | 19,749,266,000 | 19,738,801,000 | 20,745,454 | 19,853,095 | 19,713,320
Basic per share amounts: |  |  |  |  |  |  |  |  |  |  |
(Loss) income from continuing operations (in usd per share) | $ 0.09 | $ 0.10 | $ 0.18 | $ 0.06 |  |  |  |  | $ 0.43 | $ (0.14) | $ 0.49
Income from discontinued operations (in usd per share) | $ 0.00 | $ 0.00 | $ 0.12 | $ 0.01 |  |  |  |  | $ 0.13 | $ 0.11 | $ 0.00
Net income (loss) (in usd per share) | $ 0.09 | $ 0.10 | $ 0.30 | $ 0.07 |  |  |  |  | $ 0.56 | $ (0.03) | $ 0.49
Diluted per share amounts: |  |  |  |  |  |  |  |  |  |  |
(Loss) income from continuing operations (in usd per share) | $ 0.09 | $ 0.09 | $ 0.18 | $ 0.06 |  |  |  |  | $ 0.43 | $ (0.14) | $ 0.49
Income from discontinued operations (in usd per share) | $ 0.00 | $ 0.00 | $ 0.12 | $ 0.01 |  |  |  |  | $ 0.12 | $ 0.11 | $ 0.00
Net income (loss) income (in usd per share) | $ 0.09 | $ 0.09 | $ 0.30 | $ 0.07 |  |  |  |  | $ 0.55 | $ (0.03) | $ 0.49

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