Condensed Consolidated Statement of Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Preferred Shares [Member]	Common Shares [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Shares [Member]
Stockholders' Equity, Beginning Balance at Dec. 31, 2011	$ 273,350	$ 96,325	$ 221	$ 139,943	$ 103,701	$ (66,840)
Shares Outstanding, Beginning Balance at Dec. 31, 2011		4,000	18,736,357
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,186)				(3,186)
Stock options exercised, shares			46,762
Stock options exercised	367			(562)		929
Stock-based Compensation	434			434
Deferral of Executive and Director Compensation	50			50
Executive and Director Deferred Compensation Distributions Shares			19,622
Executive and Director Deferred Compensation Distributions	0			(390)		390
Stockholders' Equity, Ending Balance at Mar. 31, 2012	$ 271,015	$ 96,325	$ 221	$ 139,475	$ 100,515	$ (65,521)
Shares Outstanding, Ending Balance at Mar. 31, 2012		4,000	18,802,741