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Significant Accounting Policies (Details) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Schedule of reconciliation of shares used to calculate basic and diluted earnings per share |  |  |  |
Weighted average shares outstanding used to compute basic earnings per share | 10,502 | 11,430 | 10,658 | 11,425
Unvested restricted stock | 33 | 53 | 35 | 55
Shares used to compute diluted earnings per share | 10,535 | 11,483 | 10,693 | 11,480

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