Stock-Based Compensation (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stock- Based Compensation (Textual) [Abstract]
Number of shares authorized under Omnibus Incentive Plan	1,000,000
Stock options vesting period, years		3 years
Stock-based compensation expense	$ 1,058	$ 1,636	$ 3,267
Income tax benefit from stock-based compensation expense	370	573	1,143
Unrecognized stock-based compensation expense	1,680
Unrecognized stock-based compensation expense to be recognized in period, years	2 years
Fair market value of fully vested shares as of the grant date	$ 25
Shares of common stock issued to non-management directors	11,320	7,944
Non-Qualified Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options life, years	10 years