Condensed Consolidated Statement of Stockholder's Equity - Unaudited - 9 months ended Sep. 30, 2018 - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]
Balance at Dec. 31, 2017	$ 24,928	$ 47	$ 40,035	$ (14,609)	$ (580)	$ 35
Balance (in shares) at Dec. 31, 2017	4,692,893	4,692,893
Net income	$ 1,143			1,143
Cumulative effect adjustment from adoption of ASU | ASU 2016-01 [Member]				35		$ (35)
Exercise of stock options	27		27
Exercise of stock options (in shares)		9,376
Repurchase of shares exercised		(1,200)
Stock-based compensation	19		19
Exercise of warrants	927	$ 2	925
Exercise of warrants (in shares)		123,593
Issuance costs for rights offering	(28)		(28)
Balance at Sep. 30, 2018	$ 27,016	$ 49	$ 40,978	$ (13,431)	$ (580)
Balance (in shares) at Sep. 30, 2018	4,824,662	4,824,662