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, 2016	6,472,000	(1,090,000)
Balances at Dec. 31, 2016	$ 65	$ (4,893)	$ 87,336	$ (57,048)	$ (50)	$ 25,410
Share based payment expense			124			124
Net income (loss) to common shareholders				9		9
Purchases of treasury stock
Foreign currency translation					45	45
Balances (in shares) at Mar. 31, 2017	6,472,000	(1,090,000)
Balances at Mar. 31, 2017	$ 65	$ (4,893)	87,460	(57,039)	(5)	25,588
Balances (in shares) at Dec. 31, 2016	6,472,000	(1,090,000)
Balances at Dec. 31, 2016	$ 65	$ (4,893)	87,336	(57,048)	(50)	25,410
Net income (loss) to common shareholders						(17)
Foreign currency translation						85
Balances (in shares) at Sep. 30, 2017	6,472,000	(1,090,000)
Balances at Sep. 30, 2017	$ 65	$ (4,893)	87,748	(57,065)	35	25,890
Balances (in shares) at Mar. 31, 2017	6,472,000	(1,090,000)
Balances at Mar. 31, 2017	$ 65	$ (4,893)	87,460	(57,039)	(5)	25,588
Share based payment expense			143			143
Net income (loss) to common shareholders				(52)		(52)
Purchases of treasury stock
Foreign currency translation					20	20
Balances (in shares) at Jun. 30, 2017	6,472,000	(1,090,000)
Balances at Jun. 30, 2017	$ 65	$ (4,893)	87,603	(57,091)	15	25,699
Share based payment expense			145			145
Net income (loss) to common shareholders				26		26
Purchases of treasury stock
Foreign currency translation					20	20
Balances (in shares) at Sep. 30, 2017	6,472,000	(1,090,000)
Balances at Sep. 30, 2017	$ 65	$ (4,893)	87,748	(57,065)	35	25,890
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			109			109
Net income (loss) to common shareholders				225		225
Purchases of treasury stock		$ (36)				(36)
Foreign currency translation					43	43
Balances (in shares) at Mar. 31, 2018	6,472,000	(1,096,000)
Balances at Mar. 31, 2018	$ 65	$ (4,929)	88,001	(56,660)	47	26,524
Purchases of treasury stock (in shares)		(6,000)
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
Net income (loss) to common shareholders						797
Foreign currency translation						(56)
Balances (in shares) at Sep. 30, 2018	6,472,000	(1,203,000)
Balances at Sep. 30, 2018	$ 65	$ (5,681)	88,172	(56,088)	(52)	$ 26,416
Purchases of treasury stock (in shares)						(113,121)
Balances (in shares) at Mar. 31, 2018	6,472,000	(1,096,000)
Balances at Mar. 31, 2018	$ 65	$ (4,929)	88,001	(56,660)	47	$ 26,524
Share based payment expense			87			87
Net income (loss) to common shareholders				364		364
Purchases of treasury stock		$ (46)				(46)
Foreign currency translation					(75)	(75)
Balances (in shares) at Jun. 30, 2018	6,472,000	(1,103,000)
Balances at Jun. 30, 2018	$ 65	$ (4,975)	88,088	(56,296)	(28)	26,854
Purchases of treasury stock (in shares)		(7,000)
Share based payment expense			84			84
Net income (loss) to common shareholders				208		208
Purchases of treasury stock		$ (706)				(706)
Foreign currency translation					(24)	(24)
Balances (in shares) at Sep. 30, 2018	6,472,000	(1,203,000)
Balances at Sep. 30, 2018	$ 65	$ (5,681)	$ 88,172	$ (56,088)	$ (52)	$ 26,416
Purchases of treasury stock (in shares)		(100,000)