CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ 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, 2014	$ 195	$ 72,917	$ (46,144)	$ (1,231)	$ (2,999)	$ 22,738
Balance (in shares) at Dec. 31, 2014	19,486,770				(1,598,911)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	526	0	0	$ 0	526
Common stock issued for options exercised (in shares)	14,000				0
Common stock issued for options exercised	$ 0	23	0	0	$ 0	23
Common stock issued for services provided (in shares)	10,000				0
Common stock issued for services provided	$ 0	15	0	0	$ 0	15
Foreign currency translation adjustment	0	0	0	(229)	0	(229)
Net income (loss)	0	0	(4,705)	0	0	(4,705)
Balance at Dec. 31, 2015	$ 195	73,481	(50,849)	(1,460)	$ (2,999)	$ 18,368
Balance (in shares) at Dec. 31, 2015	19,510,770				(1,598,911)	17,911,859
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	1,399	0	0	$ 0	$ 1,399
Common stock issued for options exercised (in shares)	457,512
Common stock issued for options exercised	$ 4	829	0	0	0	833
Common stock issued for RSUs vested (in shares)	465,326
Common stock issued for RSUs vested	$ 5	(5)	0	0	0	0
Vested RSU shares withheld to pay taxes	0	(584)	0	0	0	(584)
Foreign currency translation adjustment	0	0	0	(317)	0	(317)
Net income (loss)	0	0	1,422	0	0	1,422
Balance at Dec. 31, 2016	$ 204	$ 75,120	$ (49,427)	$ (1,777)	$ (2,999)	$ 21,121
Balance (in shares) at Dec. 31, 2016	20,433,608				(1,598,911)	18,834,697