Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares) at Dec. 31, 2017	6,472,000	(1,090,000)
Balances at Dec. 31, 2017	$ 65	$ (4,893)	$ 87,892	$ (56,885)	$ 4	$ 26,183
Share based payment expense			363			363
Net income (loss)				856		856
Purchases of treasury stock (in shares)		(174,000)
Purchases of treasury stock		$ (1,200)				(1,200)
Foreign currency translation					(97)	(97)
Balances (in shares) at Dec. 31, 2018	6,472,000	(1,264,000)
Balances at Dec. 31, 2018	$ 65	$ (6,093)	88,255	(56,029)	(93)	26,105
Share based payment expense			216			216
Net income (loss)				(4,786)		$ (4,786)
Purchases of treasury stock (in shares)		(46,000)				(45,707)
Purchases of treasury stock		$ (259)				$ (259)
Foreign currency translation					95	95
Balances (in shares) at Dec. 31, 2019	6,472,000	(1,310,000)
Balances at Dec. 31, 2019	$ 65	$ (6,352)	$ 88,471	$ (60,815)	$ 2	$ 21,371