Condensed Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ 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, 2023	30,385
Balance at Dec. 31, 2023	$ 313	$ 164,853	$ (117,529)	$ (1,748)	$ 76	$ (2,251)	$ 43,714
Net income	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
Balance (in shares) at Mar. 31, 2024	30,385
Balance at Mar. 31, 2024	$ 313	164,957	(117,248)	(1,891)	76	(2,251)	43,956
Balance (in shares) at Dec. 31, 2024	30,708
Balance at Dec. 31, 2024	$ 317	165,295	(119,472)	(1,915)	76	(2,346)	41,955
Net income	0	0	(739)	0	0	0	(739)
Foreign currency translation adjustments	0	0	0	135	0	0	135
Stock compensation expense	$ 0	110	0	0	0	0	110
Common shares issued upon vesting of restricted stock units (in shares)	85
Common shares issued upon vesting of restricted stock units	$ 1	0	0	0	0	0	1
Taxes paid on behalf of equity award participants (in shares)	(24)
Taxes paid on behalf of equity award participants	$ 0	0	0	0	0	(24)	(24)
Balance (in shares) at Mar. 31, 2025	30,769
Balance at Mar. 31, 2025	$ 318	$ 165,405	$ (120,211)	$ (1,780)	$ 76	$ (2,370)	$ 41,438