Stock-Based Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended					0 Months Ended					0 Months Ended			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Stock options	Dec. 31, 2012 Stock options	Dec. 31, 2011 Stock options	Feb. 27, 2008 Long-term incentive plan	Dec. 31, 2013 Long-term incentive plan	Mar. 13, 2013 Long-term incentive plan	Mar. 12, 2013 Long-term incentive plan	Feb. 26, 2008 Long-term incentive plan	Apr. 24, 2013 Long-term incentive plan Vested stock grants Directors	Apr. 25, 2012 Long-term incentive plan Vested stock grants Directors	Apr. 29, 2011 Long-term incentive plan Vested stock grants Directors	Dec. 31, 2013 Long-term incentive plan Vested stock grants Directors	Dec. 31, 2012 Long-term incentive plan Vested stock grants Directors	Dec. 31, 2011 Long-term incentive plan Vested stock grants Directors
Stock-Based Compensation
Maximum number of shares of common stock available for awards before amendment									2,175,000	2,000,000
Maximum number of shares of common stock available for awards						2,175,000		2,975,000
Term of plan						20 years
Shares remaining available for awards							605,025
Historical volatility period of common stock used to estimate the fair value of each option grant			90 days
Recognized stock-based compensation expense			$ 0	$ 0	$ 0									$ 465	$ 245	$ 245
Vested stock grants to directors (in shares)											21,949	12,995	14,009
Value of vested stock grants to directors											465	245	245
Unrecognized compensation costs related to unvested options			0	0	0
Number of Shares
Outstanding at the beginning of the period (in shares)			7,101	88,124
Granted (in shares)			0	0	0
Exercised (in shares)	(81,023)	(68,322)		(81,023)
Outstanding at the end of the period (in shares)			7,101	7,101	88,124
Vested and Exercisable at the end of the period (in shares)			7,101
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)			$ 5.75	$ 6.44
Exercised (in dollars per share)				$ 6.49
Outstanding at the end of the period (in dollars per share)			$ 5.75	$ 5.75	$ 6.44
Vested and Exercisable at the end of the period			$ 5.75
Weighted Average Remaining Contractual Term
Vested and Exercisable at the end of the period			1 year 4 months 24 days
Aggregate Intrinsic Value
Vested and Exercisable at the end of the period			144
Intrinsic value of options exercised			$ 0	$ 1,025	$ 994
Nonvested options outstanding (in shares)			0	0	0