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Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share [Abstract] |
Earnings per Basic and Diluted Weighted Average Common Share Outstanding | Earnings per basic and diluted weighted average common share outstanding were calculated as follows for the three and nine months ended September 30, 2013 and 2012 (in thousands, except per share data):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Net income |  | $ | 1,016 |  |  | $ | 3,396 |  |  | $ | 16,083 |  |  | $ | 11,734 |
Basic weighted-average common shares outstanding |  |  | 9,449 |  |  |  | 9,383 |  |  |  | 9,443 |  |  |  | 9,375 |
Effect of potentially dilutive common shares(1) |  |  | 68 |  |  |  | 116 |  |  |  | 55 |  |  |  | 83 |
Diluted weighted-average common shares outstanding |  |  | 9,517 |  |  |  | 9,499 |  |  |  | 9,498 |  |  |  | 9,458 |
Earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings per basic common share |  | $ | 0.11 |  |  | $ | 0.36 |  |  | $ | 1.70 |  |  | $ | 1.25 |
Earnings per diluted common share |  | $ | 0.11 |  |  | $ | 0.36 |  |  | $ | 1.69 |  |  | $ | 1.24 |
Antidilutive shares not included in diluted common share calculation |  |  | 93 |  |  |  | 96 |  |  |  | 97 |  |  |  | 120 |
(1) | Represents the effect of the assumed exercise of stock options and the vesting of restricted stock units and performance stock awards, based on the treasury stock method.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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