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, 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 loss				(4,786)		(4,786)
Purchases of treasury stock (in shares)		(46,000)
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
Share based payment expense			16			16
Net loss				(4,941)		$ (4,941)
Purchases of treasury stock (in shares)		(5,000)				(4,833)
Purchases of treasury stock		$ (19)				$ (19)
Foreign currency translation					79	79
Balances (in shares) at Dec. 31, 2020	6,472,000	(1,315,000)
Balances at Dec. 31, 2020	$ 65	$ (6,371)	$ 88,487	$ (65,756)	$ 81	$ 16,506