CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Treasury Stock	Total
Balance at Dec. 31, 2013	$ 72,664	$ 88	$ 593,144	$ (225,722)	$ 4,456	$ (29,266)	$ 415,364
Increase (decrease) in shareholders' equity
Net income				7,887			7,887
Other comprehensive income					479		479
Issuance of treasury stock for employee stock purchase Plan			(104)			148	44
Net issuance of treasury stock for restricted stock unit vesting and related tax benefit			(135)			125	(10)
Cash dividends common stock at $0.04 and $0.05 per share for the period of three months ended March 2015 and 2014, respectively				(3,472)			(3,472)
Stock dividend equivalents restricted stock units at $0.04 and $0.05 per share for the period of three months ended March 2015 and 2014, respectively			35	(35)
Stock-based employee compensation			224				224
Preferred stock dividends				(182)			(182)
Balance at Mar. 31, 2014	72,664	88	593,164	(221,524)	4,935	(28,993)	420,334
Balance at Dec. 31, 2014	72,664	88	593,687	(210,384)	5,817	(28,233)	433,639
Increase (decrease) in shareholders' equity
Net income				7,761			7,761
Other comprehensive income					2,416		2,416
Issuance of treasury stock for employee stock purchase Plan			(280)			428	148
Net issuance of treasury stock for restricted stock unit vesting and related tax benefit			(206)			190	(16)
Issuance of treasury stock						34	34
Cash dividends common stock at $0.04 and $0.05 per share for the period of three months ended March 2015 and 2014, respectively				(4,342)			(4,342)
Stock dividend equivalents restricted stock units at $0.04 and $0.05 per share for the period of three months ended March 2015 and 2014, respectively			67	(66)			1
Stock-based employee compensation			341				341
Preferred stock dividends				(182)			(182)
Balance at Mar. 31, 2015	$ 72,664	$ 88	$ 593,609	$ (207,213)	$ 8,233	$ (27,581)	$ 439,800