Consolidated Statement Of Shareholders' Equity (USD $) In Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance, value at Dec. 31, 2012	$ 309	$ 240,107	$ 242,082	$ (1,575)	$ (4,101)	$ 476,822
Balance, shares at Dec. 31, 2012	30,938				350
Net loss			(9,642)			(9,642)
Foreign currency translation adjustment				(1,362)		(1,362)
Adjustment to pension benefit liability, net of taxes of $4				7		7
Adjustment to post-retirement healthcare benefit liability, net of taxes of $36				56		56
Stock compensation expense		2,138				2,138
Excess tax benefit from compensation		62				62
Net settlement of restricted stock units, shares	104				40
Net settlement of restricted stock units, value	1	(1)			(642)	(642)
Issuance of restricted stock, shares	13
Stock options exercised, shares	32
Stock options exercised, value		342				342
Balance, value at Sep. 30, 2013	$ 310	$ 242,648	$ 232,440	$ (2,874)	$ (4,743)	$ 467,781
Balance, shares at Sep. 30, 2013	31,087				390