Interim Condensed Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2014	$ 337,670	$ 1,130	$ 93,849	$ (426)	$ 259,476	$ (16,359)
Balance (shares) at Dec. 31, 2014		11,264,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,359	0	0	0	7,359	0
Translation adjustment	(13,652)	0	0	0	0	(13,652)
Net actuarial gain arising during period, net of taxes	205	0	0	0	0	205
Stock-based compensation	176	0	176	0	0	0
Exercise of stock options	275	2	273	0	0	0
Exercise of stock options (shares)		15,000
Dividends paid ($.08 per share)	(903)	0	0	0	(903)	0
Balance at Mar. 31, 2015	$ 331,130	$ 1,132	$ 94,298	$ (426)	$ 265,932	$ (29,806)
Balance (shares) at Mar. 31, 2015		11,279,000