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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2013
Basic and Diluted Earnings Per Share | Basic and diluted earnings per share for the three and six months ended June 30, 2013 and 2012 are as follows:
|  | Three months ended June 30, |  | Six months ended June 30,
|  | 2013 |  | 2012 |  | 2013 |  | 2012
Shares used in the calculation of Basic earnings per share |  |  | 13,510,573 |  |  |  | 13,262,023 |  |  |  | 13,459,049 |  |  |  | 13,212,424 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options, SARs, RSAs, and shares held in escrow |  |  | 1,068,354 |  |  |  | 1,181,771 |  |  |  | 1,025,929 |  |  |  | 1,090,015 |
Diluted shares used in the calculation of earnings per share |  |  | 14,578,927 |  |  |  | 14,443,794 |  |  |  | 14,484,978 |  |  |  | 14,302,439 |

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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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