Note 10 - Income Taxes - Reconciliation of Taxes on Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Tax provision computed at the federal statutory rate, amount	$ 12,980	$ 17,493	$ 12,402
Tax provision computed at the federal statutory rate, percent	21.00%	21.00%	21.00%
Different tax rates applicable to foreign operations, amount	$ 1,736	$ (1,697)	$ (1,677)
Different tax rates applicable to foreign operations, percent	3.00%	(2.00%)	(3.00%)
Reversal of liability for uncertain tax positions - net, amount	$ (1,696)	$ (4,726)	$ (2,515)
Reversal of liability for uncertain tax positions - net, percent	(3.00%)	(6.00%)	(4.00%)
State taxes, net of federal benefit, amount	$ (767)	$ (433)	$ 292
State taxes, net of federal benefit, percent	(1.00%)	(1.00%)	0.00%
SERP/COLI and restricted stock income, amount	$ (1,302)	$ (756)	$ 733
SERP/COLI and restricted stock income, percent	(2.00%)	1.00%	(1.00%)
SERP/COLI and restricted stock income, percent	2.00%	(1.00%)	1.00%
Other, net, amount	$ 1,665	$ (412)	$ (2,865)
Other, net, percent	3.00%	(0.00%)	(5.00%)
Income Tax Expense (Benefit)	$ 12,616	$ 9,469	$ 6,370
Tax provision (benefit) computed at the Company's effective tax rate, percent	20.00%	11.00%	11.00%