Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Nil Coupon Perpetual Loan Notes [Member]	Treasury Stock [Member]	Total
Beginning balance (in shares) at Dec. 31, 2019	24,592,000
Beginning balance at Dec. 31, 2019	$ 254	$ 139,560	$ (110,325)	$ (1,778)	$ 76	$ (1,612)	$ 26,175
Net loss			(4,278)				(4,278)
Foreign currency translation adjustments				408			408
Stock compensation expense		290					$ 290
Exercise of stock options (in shares)	183,000						183,000
Exercise of stock options	$ 2	294					$ 296
Common stock issued upon vesting of restricted stock units (in shares)	606,000
Common stock issued upon vesting of restricted stock units	$ 6	(6)					$ 0
Treasury shares withheld (in shares)	(152,000)						(152,257)
Treasury shares withheld						(570)	$ (570)
Net income (loss)			(4,278)				(4,278)
Ending balance (in shares) at Dec. 31, 2020	25,229,000
Ending balance at Dec. 31, 2020	$ 262	140,138	(114,603)	(1,370)	76	(2,182)	22,321
Net loss			54				54
Foreign currency translation adjustments				(234)			(234)
Stock compensation expense		82					$ 82
Exercise of stock options (in shares)							(0)
Exercise of stock options							$ 0
Common stock issued upon vesting of restricted stock units (in shares)	50,000
Common stock issued upon vesting of restricted stock units	$ 0	0					$ 0
Treasury shares withheld (in shares)	(15,000)						(15,162)
Treasury shares withheld						(52)	$ (52)
Net income (loss)			54				54
Common stock issued in connection with private placement, net (in shares)	5,000,000
Common stock issued in connection with private placement, net	$ 50	23,979					24,029
Ending balance (in shares) at Dec. 31, 2021	30,264,000
Ending balance at Dec. 31, 2021	$ 312	$ 164,199	$ (114,549)	$ (1,604)	$ 76	$ (2,234)	$ 46,200