Unaudited Condensed Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Treasury Stock [Member]
Balance at beginning of period at Dec. 31, 2014	$ 139,388	$ 700	$ 412,642	$ (371)	$ 125,378	$ (398,961)
Shares at beginning of period at Dec. 31, 2014		70,029				40,616
Issuance for stock-based compensation and dividends, net of forfeitures		432
Exercise of stock options	22	22
Issuance for stock-based compensation and dividends, net of forfeitures		5	139
Exercise of stock options		0	245
Income tax benefit from stock-based compensation			236
Stock-based compensation expense			1,291
Employee stock purchase plan	152		91			61
Pension plans, net of tax of $1	1			1
Net income	5,785				5,785
Dividends, net of forfeitures ($0.11 per share)					(3,255)
Repurchases of common stock, shares						302
Employee stock purchase plan, shares						(7)
Repurchases of common stock						(7,082)
Balance at end of period at Mar. 31, 2015	$ 136,905	$ 705	$ 414,644	$ (370)	$ 127,908	$ (405,982)
Shares at end of period at Mar. 31, 2015		70,483				40,911