Consolidated Condensed Statements Of Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Non-Controlling Interest [Member]	Total
Balance at Dec. 31, 2019	$ 8,781	$ 86,770	$ (4,286)	$ (520)	$ (253)	$ 90,492
Balance, shares at Dec. 31, 2019	8,781
Exercise of stock options, net	$ 11	4				15
Exercise of stock options, net, shares	11
Withholding of common stock upon vesting of restricted stock units	$ 22	(220)				(198)
Withholding of common stock upon vesting of restricted stock units, shares	22
Shares issued under the employee stock purchase plan	$ 5	48				53
Shares issued under the employee stock purchase plan, shares	5
Stock-based compensation		376				376
Net (loss) income			(1,979)			(1,979)
Comprehensive income				18		18
Balance at Mar. 31, 2020	$ 8,819	86,978	(6,265)	(502)	(253)	88,777
Balance, shares at Mar. 31, 2020	8,819
Balance at Dec. 31, 2020	$ 8,951	89,702	(6,810)	(679)	35	91,199
Balance, shares at Dec. 31, 2020	8,951
Exercise of stock options, net	$ 22	(15)				$ 7
Exercise of stock options, net, shares	22					84
Withholding of common stock upon vesting of restricted stock units	$ 24	(265)				$ (241)
Withholding of common stock upon vesting of restricted stock units, shares	24
Shares issued under the employee stock purchase plan	$ 2	51				53
Shares issued under the employee stock purchase plan, shares	2
Stock-based compensation		453				453
Net (loss) income			714		(42)	672
Comprehensive income				152	(50)	102
Balance at Mar. 31, 2021	$ 8,999	$ 89,926	$ (6,096)	$ (527)	$ (57)	$ 92,245
Balance, shares at Mar. 31, 2021	8,999