CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Deficit	Total
Beginning balance, shares at Dec. 31, 2017	15,438
Beginning balance, value at Dec. 31, 2017	$ 15	$ 73,246	$ (2,040)	$ (49,374)	$ 21,847
Net income (loss)				(850)	(850)
Share-based compensation		5			5
Ending balance, shares at Mar. 31, 2018	15,438
Ending balance, value at Mar. 31, 2018	$ 15	73,251	(2,040)	(50,224)	21,002
Beginning balance, shares at Dec. 31, 2017	15,438
Beginning balance, value at Dec. 31, 2017	$ 15	73,246	(2,040)	(49,374)	21,847
Net income (loss)					(558)
Ending balance, shares at Jun. 30, 2018	15,438
Ending balance, value at Jun. 30, 2018	$ 15	73,256	(2,040)	(49,932)	21,299
Beginning balance, shares at Mar. 31, 2018	15,438
Beginning balance, value at Mar. 31, 2018	$ 15	73,251	(2,040)	(50,224)	21,002
Net income (loss)				292	292
Share-based compensation		5			5
Ending balance, shares at Jun. 30, 2018	15,438
Ending balance, value at Jun. 30, 2018	$ 15	73,256	(2,040)	(49,932)	21,299
Beginning balance, shares at Dec. 31, 2018	15,706
Beginning balance, value at Dec. 31, 2018	$ 16	73,271	(2,062)	(54,116)	17,109
Net income (loss)				212	212
Treasury shares purchased			(170)		(170)
Share-based compensation		104			104
Ending balance, shares at Mar. 31, 2019	15,706
Ending balance, value at Mar. 31, 2019	$ 16	73,375	(2,232)	(53,904)	17,255
Beginning balance, shares at Dec. 31, 2018	15,706
Beginning balance, value at Dec. 31, 2018	$ 16	73,271	(2,062)	(54,116)	17,109
Net income (loss)					100
Ending balance, shares at Jun. 30, 2019	15,706
Ending balance, value at Jun. 30, 2019	$ 16	73,399	(2,280)	(54,016)	17,119
Beginning balance, shares at Mar. 31, 2019	15,706
Beginning balance, value at Mar. 31, 2019	$ 16	73,375	(2,232)	(53,904)	17,255
Net income (loss)				(112)	(112)
Treasury shares purchased			(48)		(48)
Share-based compensation		24			24
Ending balance, shares at Jun. 30, 2019	15,706
Ending balance, value at Jun. 30, 2019	$ 16	$ 73,399	$ (2,280)	$ (54,016)	$ 17,119