Stock-Based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Total intrinsic value	$ 134,000		$ 134,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	2,000	35,000	8,000	75,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, beginning of period (in shares)			155,224
Granted (in shares)			0
Exercised (in shares)			(23,808)
Forfeited or expired or cancelled (in shares)			(3,776)
Outstanding, end of period (in shares)	127,640		127,640
Exercisable at end of period (in shares)	127,640		127,640
Outstanding, weighted average remaining contractual terms			4 years 11 months 26 days
Total intrinsic value	426,000		426,000
Exercisable, weighted average remaining contractual terms			4 years 11 months 26 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding, weighted average exercise price per share at beginning of period (in dollars per share)			$ 10.71
Granted, weighted average exercise price (in dollars per share)			$ 0
Exercised, weighted average exercise price (in dollars per share)			$ 7.63
Forfeited, expired or cancelled (in dollars per share)			$ 15.58
Outstanding, weighted average exercise price per share at end of period (in dollars per share)	$ 11.15		$ 11.15
Exercisable, weighted average exercise price per share (in dollars per share)	$ 11.15		$ 11.15
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	196,000	72,000	327,000	249,000
Compensation cost not yet recognized	1,400,000		1,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at beginning of period (in shares)			71,744
Granted (in shares)			79,456
Vested (in shares)			(25,153)
Forfeited, expired or cancelled (in shares)			(1,748)
Outstanding at end of period (in shares)	124,299		124,299
Weighted Average Per Share, Grant Date Fair Value [Roll Forward]
Weighted average exercise price per share at beginning of period (in dollars per share)			$ 12.80
Weighted average exercise price per share granted (in dollars per share)			$ 11.50
Weighted average exercise price per share vested (in dollars per share)			$ 12.73
Weighted average exercise price per share forfeited, expired or cancelled (in dollars per share)			$ 13.18
Weighted average exercise price per share at end of period (in dollars per share)	$ 11.97		$ 11.97
Outstanding weighted average remaining contractual terms (in years)			2 years 9 months 3 days
Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		$ 2,000		$ 7,000