Consolidated Statements of Changes in Stockholders' Equity - USD ($)	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, 2014	$ 61,855,000	$ 8,720,000	$ 8,701,000	$ 43,275,000	$ (267,000)	$ 1,426,000
Net income (loss)	297,000			297,000
Adjustment for foreign currency translation	(1,892,000)					(1,892,000)
Stock based compensation	1,252,000	0	1,252,000
Shares issued		76,000	(76,000)
Share repurchase	(248,000)				(248,000)
Balance at end of year at Dec. 31, 2015	61,264,000	8,796,000	9,877,000	43,572,000	(515,000)	(466,000)
Net income (loss)	(1,629,000)			(1,629,000)
Adjustment for foreign currency translation	427,000					427,000
Stock based compensation	1,247,000	0	1,247,000
Shares issued		69,000	(69,000)
Share repurchase	(176,000)				(176,000)
Balance at end of year at Dec. 31, 2016	61,133,000	8,865,000	11,055,000	41,943,000	(691,000)	(39,000)
Deferred Tax Expense from Stock Options Exercised	200,000
Net income (loss)	29,688,000
Adjustment for foreign currency translation	861,000
Stock based compensation	2,006,000	0	2,006,000
Shares issued		56,000	(56,000)
Share repurchase	(20,000)				(20,000)
Balance at end of year at Dec. 31, 2017	93,490,000	$ 8,921,000	$ 13,005,000	$ 71,453,000	$ (711,000)	$ 822,000
Cumulative Effect of New Accounting Principle in Period of Adoption	$ (178,000)