Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2021	8,689,815
Balance at Dec. 31, 2021		$ 90	$ 16,261	$ (11,327)	$ (194)	$ 39,044	$ 43,874
Common stock repurchased* (in shares)	(70,864)
Common stock repurchased*							(2,332)
Net (loss) income						8,670	8,670
Stock compensation expense			10				10
Foreign currency translation adjustment					1		1
Balance (in shares) at Mar. 31, 2022	8,618,951
Balance at Mar. 31, 2022		90	16,271	(13,659)	(193)	47,714	50,223
Balance (in shares) at Dec. 31, 2021	8,689,815
Balance at Dec. 31, 2021		90	16,261	(11,327)	(194)	39,044	43,874
Net (loss) income							12,885
Unrealized gain (loss) on marketable securities							(6)
Balance (in shares) at Sep. 30, 2022	8,510,565
Balance at Sep. 30, 2022		90	16,421	(16,369)	164	51,929	52,235
Common stock repurchased*				(2,332)
Balance (in shares) at Mar. 31, 2022	8,618,951
Balance at Mar. 31, 2022		90	16,271	(13,659)	(193)	47,714	50,223
Common stock repurchased* (in shares)	(58,447)
Common stock repurchased*				(1,347)			(1,347)
Net (loss) income						2,856	2,856
Stock compensation expense			150				150
Foreign currency translation adjustment					243		243
Stock compensation expense (in shares)	6,504
Balance (in shares) at Jun. 30, 2022	8,567,008
Balance at Jun. 30, 2022		90	16,421	(15,006)	50	50,570	52,125
Common stock repurchased* (in shares)	(56,443)
Common stock repurchased*				(1,363)			(1,363)
Net (loss) income						1,359	1,359
Foreign currency translation adjustment					120		120
Unrealized gain (loss) on marketable securities					(6)		(6)
Balance (in shares) at Sep. 30, 2022	8,510,565
Balance at Sep. 30, 2022		90	16,421	(16,369)	164	51,929	52,235
Balance (in shares) at Dec. 31, 2022	8,502,735
Balance at Dec. 31, 2022		90	16,471	(16,662)	(61)	52,925	52,763
Net (loss) income						1,256	1,256
Foreign currency translation adjustment					(53)		(53)
Unrealized gain (loss) on marketable securities					37		37
Balance (in shares) at Mar. 31, 2023	8,502,735
Balance at Mar. 31, 2023		90	16,471	(16,662)	(77)	54,181	54,003
Balance (in shares) at Dec. 31, 2022	8,502,735
Balance at Dec. 31, 2022		90	16,471	(16,662)	(61)	52,925	52,763
Net (loss) income							2,909
Unrealized gain (loss) on marketable securities							36
Balance (in shares) at Sep. 30, 2023	8,440,356
Balance at Sep. 30, 2023		90	16,621	(18,213)	(57)	55,834	54,275
Balance (in shares) at Mar. 31, 2023	8,502,735
Balance at Mar. 31, 2023		90	16,471	(16,662)	(77)	54,181	54,003
Common stock repurchased* (in shares)	(18,075)
Common stock repurchased*				(443)			(443)
Net (loss) income						1,875	1,875
Stock compensation expense		0	150				150
Foreign currency translation adjustment					6		6
Stock compensation expense (in shares)	6,021
Unrealized gain (loss) on marketable securities					(12)		(12)
Balance (in shares) at Jun. 30, 2023	8,490,681
Balance at Jun. 30, 2023		90	16,621	(17,105)	(83)	56,056	55,579
Common stock repurchased* (in shares)	(50,325)
Common stock repurchased*				(1,108)			(1,108)
Net (loss) income						(222)	(222)
Foreign currency translation adjustment					15		15
Unrealized gain (loss) on marketable securities					11		11
Balance (in shares) at Sep. 30, 2023	8,440,356
Balance at Sep. 30, 2023		$ 90	$ 16,621	$ (18,213)	$ (57)	$ 55,834	$ 54,275