Condensed Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - 3 months ended Mar. 31, 2017 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (loss) [Member]	Non-controlling Interest [Member]
Beginning Balance at Dec. 31, 2016	$ 315,199	$ 272	$ 284,508	$ 55,509	$ (25,122)	$ 32
Beginning Balance, Shares at Dec. 31, 2016		27,249
Net income (Loss)	7,407			7,407
Dividends paid	(1,910)			(1,910)
Stock option expense	381		381
Shares issued for option exercises	$ 912	$ 1	911
Shares issued for option exercises, shares	81	80
Restricted and performance based stock compensation expense	$ 771		771
Restricted and performance based stock compensation expense,shares		83
Restricted shares forgiven for taxes and forfeited	(327)		(327)
Restricted shares forgiven for taxes and forfeited, shares		(14)
Foreign currency translation gain	4,706				4,706
Adoption of new accounting standard (see Note 1)	740			740
Ending Balance at Mar. 31, 2017	$ 327,879	$ 273	$ 286,244	$ 61,746	$ (20,416)	$ 32
Ending Balance, Shares at Mar. 31, 2017		27,398