CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Comprehensive Income	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock
Balance at Dec. 31, 2011	$ 45,471		$ 118	$ 911,990	$ (858,105)	$ (8,532)
Balance (in shares) at Dec. 31, 2011			11,826,000			1,123,000
Increase (Decrease) in Stockholders' Equity
Net income and comprehensive income	46,625	46,625			46,625
Non-cash compensation	4,756			4,756
Purchase of treasury stock	(880)					(880)
Purchase of treasury stock (in shares)	65,218					65,000
Dividends	(12,236)			(12,236)
Issuance of common stock for stock options, restricted stock awards and restricted stock units, net of withholding taxes	(814)		4	(818)
Issuance of common stock for stock options, restricted stock awards and restricted stock units, net of withholding taxes (in shares)			369,000
Balance at Dec. 31, 2012	82,922		122	903,692	(811,480)	(9,412)
Balance (in shares) at Dec. 31, 2012			12,195,000			1,188,000
Increase (Decrease) in Stockholders' Equity
Net income and comprehensive income	3,947	3,947			3,947
Non-cash compensation	5,629			5,629
Purchase of treasury stock	(3,321)					(3,321)
Purchase of treasury stock (in shares)	180,453					181,000
Dividends	637			637
Issuance of common stock for stock options, restricted stock awards and restricted stock units, net of withholding taxes	(2,806)		4	(2,810)
Issuance of common stock for stock options, restricted stock awards and restricted stock units, net of withholding taxes (in shares)			425,000
Balance at Dec. 31, 2013	87,008		126	907,148	(807,533)	(12,733)
Balance (in shares) at Dec. 31, 2013			12,620,000			1,369,000
Increase (Decrease) in Stockholders' Equity
Net income and comprehensive income	9,362	9,362			9,362
Non-cash compensation	7,446			7,446
Purchase of treasury stock	(2,610)					(2,610)
Purchase of treasury stock (in shares)	99,345					99,000
Dividends	(28)			(28)
Issuance of common stock for stock options, restricted stock awards and restricted stock units, net of withholding taxes	(4,812)		3	(4,815)
Issuance of common stock for stock options, restricted stock awards and restricted stock units, net of withholding taxes (in shares)			235,000
Balance at Dec. 31, 2014	$ 96,366		$ 129	$ 909,751	$ (798,171)	$ (15,343)
Balance (in shares) at Dec. 31, 2014			12,855,000			1,468,000