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Significant Accounting Policies (Details 1) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
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	11,390	11,906	13,426
Incremental shares issuable upon the assumed exercise of stock options		8	36
Unvested restricted stock	50	29	73
Shares used to compute diluted earnings per share	11,440	11,943	13,535

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Incremental common shares attributable to unvested restricted stock arrangements.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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