Consolidated Condensed Statements Of Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Non-Controlling Interest [Member]	Total
Balance at Dec. 31, 2017	$ 6,900	$ 21,581	$ (6,056)	$ (733)	$ (253)	$ 21,439
Balance, shares at Dec. 31, 2017	6,900
Exercise of stock options, net	$ 41	167				208
Exercise of stock options, net, shares	41
Shares issued under the employee stock purchase plan	$ 3	57				60
Shares issued under the employee stock purchase plan, shares	3
Stock-based compensation		333				333
Net income			769			769
Comprehensive income				86		86
Balance at Mar. 31, 2018	$ 6,944	22,138	(5,287)	(647)	(253)	22,895
Balance, shares at Mar. 31, 2018	6,944
Balance at Dec. 31, 2018	$ 8,664	84,999	(509)	(927)	(253)	91,974
Balance, shares at Dec. 31, 2018	8,664
Exercise of stock options, net	$ 27	(9)				$ 18
Exercise of stock options, net, shares	27					60
Withholding of common stock upon vesting of restricted stock units, net	$ 20
Withholding of common stock upon vesting of restricted stock units, net		(255)				$ (235)
Withholding of common stock upon vesting of restricted stock units, net, shares	20
Shares issued under the employee stock purchase plan	$ 3	67				70
Shares issued under the employee stock purchase plan, shares	3
Stock-based compensation		329				329
Net income			775			775
Comprehensive income				130		130
Balance at Mar. 31, 2019	$ 8,714	$ 85,131	$ 266	$ (797)	$ (253)	$ 93,061
Balance, shares at Mar. 31, 2019	8,714