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, 2013	$ 311	$ 243,389	$ 236,449	$ (3,585)	$ (4,815)	$ 471,749
Balance, shares at Dec. 31, 2013	31,131				395
Net loss			(2,086)			(2,086)
Foreign currency translation adjustment				(904)		(904)
Adjustment to pension benefit liability, net of taxes of $1				2		2
Adjustment to post-retirement healthcare benefit liability, net of taxes of $12				19		19
Stock compensation expense		660				660
Excess tax benefit from compensation		91				91
Stock options exercised, shares	30
Stock options exercised, value		365				365
Net settlement of restricted stock units, shares	58				22
Net settlement of restricted stock units, value	1	(1)			(408)	(408)
Balance, value at Mar. 31, 2014	$ 312	$ 244,504	$ 234,363	$ (4,468)	$ (5,223)	$ 469,488
Balance, shares at Mar. 31, 2014	31,219				417