UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total	Additional Paid-in Capital [Member]
Beginning balance, shares at Dec. 31, 2023	21,175
Beginning balance, value at Dec. 31, 2023	$ 28,678	$ 247,857	$ (1,867)
Pension benefit obligation
Common stock issued upon exercise of options and warrants, shares	180
Common stock issued upon exercise of options and warrants	$ 705
Repurchase of common stock, shares	(207)
Repurchase of common stock	$ (1,697)
Stock-based compensation					$ 832
Net income		4,590		4,590
Ending balance, shares at Mar. 31, 2024	21,148
Ending balance, value at Mar. 31, 2024	$ 28,518	252,447	(1,867)	279,098
Beginning balance, shares at Dec. 31, 2024	21,433
Beginning balance, value at Dec. 31, 2024	$ 25,720	267,060	(10)	292,770
Pension benefit obligation
Common stock issued upon exercise of options and warrants, shares	70
Common stock issued upon exercise of options and warrants	$ 246
Repurchase of common stock, shares	0
Repurchase of common stock	$ 0
Stock-based compensation					$ 717
Net income		4,694		4,694
Ending balance, shares at Mar. 31, 2025	21,503
Ending balance, value at Mar. 31, 2025	$ 26,683	$ 271,754	$ (10)	$ 298,427