Condensed Statements of Stockholders' Equity (Unaudited) - 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, Common [Member]	Total
Balance (in shares) at Dec. 31, 2022	30,296,000
Balance at Dec. 31, 2022	$ 313	$ 164,422	$ (115,991)	$ (1,728)	$ 76	$ (2,251)	$ 44,841
Net loss	0	0	(414)	0	0	0	(414)
Foreign currency translation adjustments	0	0	0	86	0	0	86
Stock compensation expense	0	89	0	0	0	0	89
Net loss	$ 0	0	(414)	0	0	0	(414)
Balance (in shares) at Mar. 31, 2023	30,296,000
Balance at Mar. 31, 2023	$ 313	164,511	(116,405)	(1,642)	76	(2,251)	44,602
Balance (in shares) at Dec. 31, 2022	30,296,000
Balance at Dec. 31, 2022	$ 313	164,422	(115,991)	(1,728)	76	(2,251)	44,841
Net loss							(1,458)
Foreign currency translation adjustments							38
Net loss							(1,458)
Balance (in shares) at Jun. 30, 2023	30,385
Balance at Jun. 30, 2023	$ 313	164,651	(117,449)	(1,690)	76	(2,251)	43,650
Balance (in shares) at Mar. 31, 2023	30,296,000
Balance at Mar. 31, 2023	$ 313	164,511	(116,405)	(1,642)	76	(2,251)	44,602
Net loss	0	0	(1,044)	0	0	0	(1,044)
Foreign currency translation adjustments	0	0	0	(48)	0	0	(48)
Stock compensation expense	0	98	0	0	0	0	98
Net loss	$ 0	0	(1,044)	0	0	0	(1,044)
Exercise of stock options (in shares)	44
Exercise of stock options	$ 0	42	0	0	0	0	42
Common shares issued upon vesting of restricted stock units (in shares)	45
Common shares issued upon vesting of restricted stock units	$ 0	0	0	0	0	0	0
Balance (in shares) at Jun. 30, 2023	30,385
Balance at Jun. 30, 2023	$ 313	164,651	(117,449)	(1,690)	76	(2,251)	43,650
Balance (in shares) at Dec. 31, 2023	30,385,000
Balance at Dec. 31, 2023	$ 313	164,853	(117,529)	(1,748)	76	(2,251)	43,714
Net loss	0	0	281	0	0	0	281
Foreign currency translation adjustments	0	0	0	(143)	0	0	(143)
Stock compensation expense	0	104	0	0	0	0	104
Net loss	$ 0	0	281	0	0	0	281
Balance (in shares) at Mar. 31, 2024	30,385,000
Balance at Mar. 31, 2024	$ 313	164,957	(117,248)	(1,891)	76	(2,251)	43,956
Balance (in shares) at Dec. 31, 2023	30,385,000
Balance at Dec. 31, 2023	$ 313	164,853	(117,529)	(1,748)	76	(2,251)	43,714
Net loss							(140)
Foreign currency translation adjustments							(138)
Net loss							$ (140)
Exercise of stock options (in shares)							(0)
Balance (in shares) at Jun. 30, 2024	30,708
Balance at Jun. 30, 2024	$ 317	165,077	(117,669)	(1,886)	76	(2,346)	$ 43,569
Balance (in shares) at Mar. 31, 2024	30,385,000
Balance at Mar. 31, 2024	$ 313	164,957	(117,248)	(1,891)	76	(2,251)	43,956
Net loss	0	0	(421)	0	0	0	(421)
Foreign currency translation adjustments	0	0	0	5	0	0	5
Stock compensation expense	0	124	0	0	0	0	124
Net loss	$ 0	0	(421)	0	0	0	(421)
Common shares issued upon vesting of restricted stock units (in shares)	406
Common shares issued upon vesting of restricted stock units	$ 4	(4)	0	0	0	0	0
Balance (in shares) at Jun. 30, 2024	30,708
Balance at Jun. 30, 2024	$ 317	165,077	(117,669)	(1,886)	76	(2,346)	43,569
Taxes paid on behalf of equity award participants (in shares)	(83)
Taxes paid on behalf of equity award participants	$ 0	$ 0	$ 0	$ 0	$ 0	$ (95)	$ (95)