Consolidated Statements of Changes in Stockholders' Equity (Deficiency) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2016	16,370,000		748,000
Balance at Dec. 31, 2016	$ 2	$ 68,522	$ (1,532)	$ (68,423)	$ (1,431)
Cancellation of restricted stock (in shares)	(54,000)
Cancellation of restricted stock
Treasury stock repurchased (in shares)			21,000
Treasury stock repurchased			$ (4)		(4)
Warrants issued for debt		296			296
Stock-based compensation (in shares)
Stock-based compensation		68			68
Net income				766	$ 766
Treasure stock repurchased (in shares)			(21,000)
Issuance of shares on option exercise (in shares)
Balance (in shares) at Dec. 31, 2017	16,316,000		769,000
Balance at Dec. 31, 2017	$ 2	68,886	$ (1,536)	(67,657)	$ (305)
Cancellation of restricted stock (in shares)	(30,000)
Cancellation of restricted stock
Treasury stock repurchased (in shares)			(8,000)
Treasury stock repurchased			$ (6)		(6)
Stock-based compensation (in shares)
Stock-based compensation		241			241
Net income				2,437	$ 2,437
Treasure stock repurchased (in shares)			8,000
Issuance of shares on option exercise (in shares)	90,000				90,000
Issuance of shares on option exercise		9			$ 9
Issuance of shares on warrant exercise (in shares)	1,144,000
Issuance of shares on warrant exercise		105			105
Balance (in shares) at Dec. 31, 2018	17,520,000		777,000
Balance at Dec. 31, 2018	$ 2	$ 69,241	$ (1,542)	$ (65,220)	$ 2,481