Condensed Consolidated Statement of Shareholders' Equity Statement (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Treasury Stock	Capital in Excess of Par Value	Retained Deficit	Accumulated Other Comprehensive Loss (note 10)
Balance, value at Dec. 31, 2014	$ 77,454	$ 218	$ (1,060)	$ 331,391	$ (114,648)	$ (138,447)
Balance, shares at Dec. 31, 2014		21,843,851	34,985
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	3,112				3,112
Other comprehensive income (loss)	(6,020)					(6,020)
Stock compensation expense	1,195			1,195
Dividends	(2,402)				(2,402)
Stock withheld for employee taxes	(489)			(489)
Stock issued, value	(1,858)		(6,520)	(4,662)
Stock issued, shares			195,855
Purchase of treasury shares, value	(9,144)		(9,144)
Purchase of treasury shares, shares			259,405
Balance, value at Mar. 31, 2015	$ 65,564	$ 218	$ (3,684)	$ 327,435	$ (113,938)	$ (144,467)
Balance, shares at Mar. 31, 2015		21,843,851	98,535