Note 11 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year ended December 31
	2024			2023			2022
Current:
Federal	$	18,176		$	(2,854	)	$	10,515
State		2,606			804			1,505
		20,782			(2,050	)		12,020
Deferred:
Federal		(2,617	)		7,709			(2,187	)
State		(425	)		(148	)		(1,081	)
		(3,042	)		7,561			(3,268	)
	$	17,740		$	5,511		$	8,752

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2024			2023			2022
Federal income tax expense at statutory rate	$	15,517		$	6,139		$	9,946
State taxes, net of federal benefit		2,295			762			1,445
Valuation allowance		(495	)		(67	)		(1,202	)
Change in uncertain tax positions, net		540			225			356
Research and development credit		(704	)		(1,012	)		(1,333	)
Investment tax credit		-			(682	)		-
State rate change		(165	)		92			(168	)
Other		752			54			(292	)
	$	17,740		$	5,511		$	8,752

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
	2024			2023
Deferred tax assets:
Allowance for doubtful accounts	$	588		$	413
Inventory reserves		1,749			1,468
Warranty liability		1,343			1,690
Deferred compensation		2,237			2,124
Pension and retiree health benefit obligations		866			1,225
Accrued vacation		844			1,137
Research expenditures		6,723			5,842
Operating lease liabilities		17,625			4,730
Net operating losses		1,194			1,663
Other accrued liabilities		4,550			4,376
State credit carryforwards		1,060			1,032
Other		338			404
Valuation allowance		(1,510	)		(2,005	)
Total deferred tax assets		37,607			24,099
Deferred tax liabilities:
Interest rate swaps		(573	)		(994	)
Tax deductible goodwill and other intangibles		(37,125	)		(35,974	)
Accelerated depreciation		(6,754	)		(9,924	)
Operating leases - right of use assets		(17,289	)		(4,430	)
Other		(440	)		(680	)
Total deferred tax liabilities		(62,181	)		(52,002	)
Net deferred tax liabilities	$	(24,574	)	$	(27,903	)

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	2024			2023			2022
Balance at beginning of year	$	1,701		$	1,519		$	1,214
Increases for tax positions taken in the current year		681			277			350
Increases for tax positions taken in prior years		951			-			-
Decreases due to lapses in the statute of limitations		(828	)		(95	)		(45	)
Balance at the end of year	$	2,505		$	1,701		$	1,519