Note 10 - Income Taxes - Components of Deferred Income Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
State tax credits	$ 90	$ 424
Reserves and accruals	6,970	4,504
Federal, state and foreign net operating loss and credit carryforwards	4,247	4,303
Depreciation	384	435
Amortization	9,845	6,004
Lease accounting	6,157	4,605
Other accruals	6,054	5,997
Total deferred tax assets	33,747	26,272
Valuation allowance	1,844	2,009
Net deferred tax assets	31,903	24,263
Unfunded pension liability	260	255
Depreciation	2,685	2,331
Amortization	34,903	6,359
Lease accounting	5,960	4,659
Other accruals	581	562
Total deferred tax liabilities	44,389	14,166
Net deferred tax liabilities	$ (12,486)
Net deferred tax assets		$ 10,097