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, 2023		8,295,408
Balance at Dec. 31, 2023			$ 90	$ 16,621	$ (20,359)	$ 32	$ 56,320	$ 52,704
Common stock repurchased* (in shares)	[1]	(134,650)
Common stock repurchased*	[1]				(1,647)			(1,647)
Net income							430	430
Stock compensation expense				160				160
Unrealized gain (loss) on marketable securities						5		5
Foreign currency translation adjustment						(2)		(2)
Stock compensation expense				160				160
Unrealized gain on marketable securities						5		5
Foreign currency translation adjustment						(2)		(2)
Balance (in shares) at Mar. 31, 2024		8,160,758
Balance at Mar. 31, 2024			90	16,781	(22,006)	35	56,750	51,650
Balance (in shares) at Dec. 31, 2024		7,786,679
Balance at Dec. 31, 2024			$ 91	17,928	(27,997)	(93)	61,768	51,697
Net income							1,906	1,906
Stock compensation expense				472				473
Unrealized gain (loss) on marketable securities						(1)		(1)
Foreign currency translation adjustment						(17)		(17)
Stock compensation expense (in shares)			1
Stock compensation expense				472				473
Unrealized gain on marketable securities						(1)		(1)
Foreign currency translation adjustment						(17)		(17)
Balance (in shares) at Mar. 31, 2025		7,786,679
Balance at Mar. 31, 2025			$ 92	$ 18,400	$ (27,997)	$ (111)	$ 63,674	$ 54,058

[1] At March 31, 2025, approximately $7,115,000 was authorized for future repurchases of our common stock.