CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2018	$ 214	$ 78,118	$ (42,569)	$ (1,635)	$ (2,999)	$ 31,129
Balance (in shares) at Dec. 31, 2018	21,485				(1,599)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		1,238				1,238
Common stock issued for options exercised (in shares)	9
Common stock issued for options exercised	$ 1	89				90
Common stock issued for RSUs vested (in shares)	295
Common stock issued for RSUs vested	$ 3	(3)				0
Shares withheld to pay taxes		(304)				(304)
Foreign currency translation adjustment				(149)		(149)
Net loss			(5,736)			(5,736)
Balance at Sep. 30, 2019	$ 218	79,138	(48,305)	(1,784)	$ (2,999)	26,268
Balance (in shares) at Sep. 30, 2019	21,789				(1,599)
Balance at Jun. 30, 2019	$ 217	79,028	(47,082)	(1,695)	$ (2,999)	27,469
Balance (in shares) at Jun. 30, 2019	21,699				(1,599)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		169				169
Common stock issued for options exercised (in shares)	0
Common stock issued for options exercised	$ 0	15				15
Common stock issued for RSUs vested (in shares)	90
Common stock issued for RSUs vested	$ 1	(1)				0
Shares withheld to pay taxes		(73)				(73)
Foreign currency translation adjustment				(89)		(89)
Net loss			(1,223)			(1,223)
Balance at Sep. 30, 2019	$ 218	79,138	(48,305)	(1,784)	$ (2,999)	26,268
Balance (in shares) at Sep. 30, 2019	21,789				(1,599)
Balance at Dec. 31, 2019	$ 218	79,400	(54,654)	(1,846)	$ (2,999)	20,119
Balance (in shares) at Dec. 31, 2019	21,839				(1,599)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		357				357
Common stock issued for RSUs vested (in shares)	381
Common stock issued for RSUs vested	$ 4	(4)				0
Shares withheld to pay taxes		(77)				(77)
Foreign currency translation adjustment				104		104
Net loss			(9,068)			(9,068)
Balance at Sep. 30, 2020	$ 222	79,676	(63,722)	(1,742)	$ (2,999)	11,435
Balance (in shares) at Sep. 30, 2020	22,220				(1,599)
Balance at Jun. 30, 2020	$ 221	79,676	(63,061)	(1,826)	$ (2,999)	12,011
Balance (in shares) at Jun. 30, 2020	22,150				(1,599)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		33				33
Common stock issued for RSUs vested (in shares)	70
Common stock issued for RSUs vested	$ 1	(1)				0
Shares withheld to pay taxes		(32)				(32)
Foreign currency translation adjustment				84		84
Net loss			(661)			(661)
Balance at Sep. 30, 2020	$ 222	$ 79,676	$ (63,722)	$ (1,742)	$ (2,999)	$ 11,435
Balance (in shares) at Sep. 30, 2020	22,220				(1,599)