Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Total
Balances at Dec. 31, 2021	$ 31	$ 173,942	$ (36,112)	$ (2,375)	$ (50,149)	$ 85,337
Purchase of shares treasury stock	0	0	0	0	(28,118)	(28,118)
Issuance of common shares for the exercise of stock options	0	311	0	0	0	311
Non-cash stock compensation expense	0	1,200	0	0	0	1,200
Dividends declared	0	0	(20,872)	0	0	(20,872)
Cumulative foreign currency translation adjustment	0	0	0	(194)	0	(194)
Reclassification of cumulative foreign currency translation into earnings	0	0	0	2,569	0	2,569
Net income	0	0	31,800	0	0	31,800
Balances at Dec. 31, 2022	31	175,453	(25,184)	0	(78,267)	72,033
Purchase of shares treasury stock	0	0	0	0	(20,492)	(20,492)
Issuance of common shares for the exercise of stock options	0	1,825	0	0	0	1,825
Non-cash stock compensation expense	0	935	0	0	0	935
Dividends declared	0	0	(36,317)	0	0	(36,317)
Cumulative foreign currency translation adjustment						0
Reclassification of cumulative foreign currency translation into earnings						0
Net income	0	0	30,971	0	0	30,971
Balances at Dec. 31, 2023	31	178,213	(30,530)	0	(98,759)	48,955
Purchase of shares treasury stock	0	0	0	0	(33,173)	(33,173)
Issuance of common shares for the exercise of stock options	0	1,752	0	0	0	1,752
Non-cash stock compensation expense	0	284	0	0	0	284
Dividends declared	0	0	(11,317)	0	0	(11,317)
Cumulative foreign currency translation adjustment						0
Reclassification of cumulative foreign currency translation into earnings						0
Net income	0	0	24,783	0	0	24,783
Balances at Dec. 31, 2024	$ 31	$ 180,249	$ (17,064)	$ 0	$ (131,932)	$ 31,284