Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018	8,817,988
Balance at Dec. 31, 2018	$ 88	$ 15,050	$ (92)	$ 10,875	$ 25,921
Stock options exercised (in shares)	33,000
Stock options exercised	$ 1	58			59
Net income				2,072	2,072
Stock compensation expense		25			25
Foreign currency translation adjustment			(1)		(1)
Balance (in shares) at Mar. 31, 2019	8,850,988
Balance at Mar. 31, 2019	$ 89	15,133	(93)	12,947	28,076
Balance (in shares) at Dec. 31, 2019	8,924,988
Balance at Dec. 31, 2019	$ 89	15,450	(94)	21,844	37,289
Net income				1,047	1,047
Stock compensation expense		62			62
Foreign currency translation adjustment			(31)		(31)
Balance (in shares) at Mar. 31, 2020	8,924,988
Balance at Mar. 31, 2020	$ 89	$ 15,512	$ (125)	$ 22,891	$ 38,367