Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock, $1 par value	Capital in Excess of Par Value	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance at beginning of year at Dec. 31, 2013	$ 65,912	$ 8,671	$ 7,799	$ 47,644	$ (187)	$ 1,985
Net income (loss)	(4,369)			(4,369)
Adjustment for foreign currency translation	(559)					(559)
Stock based compensation	951	0	951
Shares issued		49	(49)
Share repurchase	(80)				(80)
Balance at end of year at Dec. 31, 2014	61,855	8,720	8,701	43,275	(267)	1,426
Net income (loss)	297			297
Adjustment for foreign currency translation	(1,892)					(1,892)
Stock based compensation	1,252	0	1,252
Shares issued		76	(76)
Share repurchase	(248)				(248)
Balance at end of year at Dec. 31, 2015	61,264	8,796	9,877	43,572	(515)	(466)
Net income (loss)	(1,629)
Adjustment for foreign currency translation	427
Stock based compensation	1,247	0	1,247
Shares issued		69	(69)
Share repurchase	(176)				(176)
Balance at end of year at Dec. 31, 2016	$ 61,133	$ 8,865	$ 11,055	$ 41,943	$ (691)	$ (39)