Consolidated Statements of Changes in Stockholders' Equity (Deficiency) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2015	16,366		724
Balance at Dec. 31, 2015	$ 2	$ 68,329	$ (1,531)	$ (67,400)	$ (600)
Restricted stock issuance (in shares)	84
Restricted stock issuance
Cancellation of restricted stock (in shares)	(80)
Cancellation of restricted stock
Treasury stock repurchased (in shares)			24
Treasury stock repurchased			$ (1)		(1)
Stock-based compensation (in shares)
Stock-based compensation		193			193
Net income (loss)				(1,023)	(1,023)
Balance (in shares) at Dec. 31, 2016	16,370		748
Balance at Dec. 31, 2016	$ 2	68,522	$ (1,532)	(68,423)	(1,431)
Cancellation of restricted stock (in shares)	(54)
Cancellation of restricted stock
Treasury stock repurchased (in shares)			21
Treasury stock repurchased			$ (4)		(4)
Stock-based compensation (in shares)
Stock-based compensation		68			68
Net income (loss)				766	766
Warrants issued for debt		296			296
Balance (in shares) at Dec. 31, 2017	16,316		769
Balance at Dec. 31, 2017	$ 2	$ 68,886	$ (1,536)	$ (67,657)	$ (305)