Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ 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, 2020	6,472	(1,315)
Balances at Dec. 31, 2020	$ 65	$ (6,371)	$ 88,487	$ (65,756)	$ 81	$ 16,506
Share based payment expense	0	0	3	0	0	3
Net income to common shareholders	0	0	0	2,221	0	2,221
Foreign currency translation	$ 0	$ 0	0	0	(19)	(19)
Balances (in shares) at Mar. 31, 2021	6,472	(1,315)
Balances at Mar. 31, 2021	$ 65	$ (6,371)	88,490	(63,535)	62	18,711
Balances (in shares) at Dec. 31, 2020	6,472	(1,315)
Balances at Dec. 31, 2020	$ 65	$ (6,371)	88,487	(65,756)	81	16,506
Net income to common shareholders						4,495
Foreign currency translation						(120)
Balances (in shares) at Sep. 30, 2021	6,472	(1,315)
Balances at Sep. 30, 2021	$ 65	$ (6,371)	88,525	(61,261)	(39)	20,919
Balances (in shares) at Mar. 31, 2021	6,472	(1,315)
Balances at Mar. 31, 2021	$ 65	$ (6,371)	88,490	(63,535)	62	18,711
Share based payment expense	0	0	1	0	0	1
Net income to common shareholders	0	0	0	1,121	0	1,121
Foreign currency translation	0	0	0	0	16	16
Short-swing profit disgorgement	$ 0	$ 0	32	0	0	32
Balances (in shares) at Jun. 30, 2021	6,472	(1,315)
Balances at Jun. 30, 2021	$ 65	$ (6,371)	88,523	(62,414)	78	19,881
Share based payment expense	0	0	2	0	0	2
Net income to common shareholders	0	0	0	1,153	0	1,153
Foreign currency translation	$ 0	$ 0	0	0	(117)	(117)
Balances (in shares) at Sep. 30, 2021	6,472	(1,315)
Balances at Sep. 30, 2021	$ 65	$ (6,371)	88,525	(61,261)	(39)	20,919
Balances (in shares) at Dec. 31, 2021	6,472	(1,315)
Balances at Dec. 31, 2021	$ 65	$ (6,371)	88,580	(61,238)	(23)	21,013
Share based payment expense	0	0	55	0	0	55
Net income to common shareholders	0	0	0	739	0	739
Foreign currency translation	$ 0	$ 0	0	0	(174)	(174)
Balances (in shares) at Mar. 31, 2022	6,472	(1,315)
Balances at Mar. 31, 2022	$ 65	$ (6,371)	88,635	(60,499)	(197)	21,633
Balances (in shares) at Dec. 31, 2021	6,472	(1,315)
Balances at Dec. 31, 2021	$ 65	$ (6,371)	88,580	(61,238)	(23)	21,013
Net income to common shareholders						3,547
Foreign currency translation						(864)
Balances (in shares) at Sep. 30, 2022	6,472	(1,315)
Balances at Sep. 30, 2022	$ 65	$ (6,371)	88,745	(57,691)	(887)	23,861
Balances (in shares) at Mar. 31, 2022	6,472	(1,315)
Balances at Mar. 31, 2022	$ 65	$ (6,371)	88,635	(60,499)	(197)	21,633
Share based payment expense	0	0	55	0	0	55
Net income to common shareholders	0	0	0	921	0	921
Foreign currency translation	$ 0	$ 0	0	0	(338)	(338)
Balances (in shares) at Jun. 30, 2022	6,472	(1,315)
Balances at Jun. 30, 2022	$ 65	$ (6,371)	88,690	(59,578)	(535)	22,271
Share based payment expense	0	0	55	0	0	55
Net income to common shareholders	0	0	0	1,887	0	1,887
Foreign currency translation	$ 0	$ 0	0	0	(352)	(352)
Balances (in shares) at Sep. 30, 2022	6,472	(1,315)
Balances at Sep. 30, 2022	$ 65	$ (6,371)	$ 88,745	$ (57,691)	$ (887)	$ 23,861