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, 2008	$ 333,061	$ 96,325	$ 176	$ 82,146	$ 225,956	$ (71,542)
Shares Outstanding, Beginning Balance at Dec. 31, 2008		4,000	14,023,982
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Loss	(62,109)				(62,109)
Common stock issuance, shares			4,475,600
Common stock issuance	52,568		45	52,523
Income tax benefit (deficiency) from stock options and deferred compensation distributions	(101)			(101)
Stock options exercised, shares			10,500
Stock options exercised	70			(139)		209
Share-based compensation expense	3,111			3,111
Deferral of executive and director compensation	163			163
Executive and director deferred compensation distributions, shares			10,654
Executive and director deferred compensation distributions				(211)		211
Stockholders' Equity, Ending Balance at Dec. 31, 2009	326,763	96,325	221	137,492	163,847	(71,122)
Shares Outstanding, Ending Balance at Dec. 31, 2009		4,000	18,520,736
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Loss	(26,269)				(26,269)
Income tax benefit (deficiency) from stock options and deferred compensation distributions	(13)			(13)
Stock options exercised, shares			1,600
Stock options exercised	12			(19)		31
Share-based compensation expense	2,811			2,811
Deferral of executive and director compensation	187			187
Executive and director deferred compensation distributions, shares			1,999
Executive and director deferred compensation distributions				(40)		40
Stockholders' Equity, Ending Balance at Dec. 31, 2010	303,491	96,325	221	140,418	137,578	(71,051)
Shares Outstanding, Ending Balance at Dec. 31, 2010		4,000	18,524,335
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Loss	(33,877)				(33,877)
Income tax benefit (deficiency) from stock options and deferred compensation distributions	233			233
Stock options exercised, shares			190,090
Stock options exercised	1,500			(2,275)		3,775
Share-based compensation expense	1,866			1,866
Deferral of executive and director compensation	137			137
Executive and director deferred compensation distributions, shares			21,932
Executive and director deferred compensation distributions				(436)		436
Stockholders' Equity, Ending Balance at Dec. 31, 2011	$ 273,350	$ 96,325	$ 221	$ 139,943	$ 103,701	$ (66,840)
Shares Outstanding, Ending Balance at Dec. 31, 2011		4,000	18,736,357