Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

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

	2021		2020		2019
United States	$	30,973	$	28,493	$	41,234
Foreign countries		6,275		2,753		3,932
Total	$	37,248	$	31,246	$	45,166

	2021			2020			2019
Current expense:
Federal	$	5,174		$	4,058		$	8,204
Foreign		1,087			353			1,140
State and local		1,086			1,103			1,205
	$	7,347		$	5,514		$	10,549
Deferred expense (benefit):
Federal	$	60		$	728		$	(720	)
Foreign		48			(349	)		(379	)
State and local		(58	)		165			(99	)
		50			544			(1,198	)
Income tax expense	$	7,397		$	6,058		$	9,351

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

	2021			2020			2019
Income taxes at statutory rate	$	7,822		$	6,562		$	9,485
State and local income taxes, net of federal tax benefit		898			711			803
Tax credits		(1,052	)		(808	)		(898	)
Uncertain tax positions		(26	)		42			164
Valuation allowance		(86	)		-			71
Other		(159	)		(449	)		(274	)
Income tax expense	$	7,397		$	6,058		$	9,351

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

	2021			2020
Deferred tax assets:
Inventories	$	-		$	646
Accrued liabilities		1,900			1,484
Postretirement health benefits obligation		6,724			6,815
Pension		1,745			1,688
Lease liabilities		272			390
Other		1,531			1,434
Total deferred tax assets		12,172			12,457
Valuation allowance		(481	)		(567	)
Net deferred tax assets		11,691			11,890
Deferred tax liabilities:
Depreciation and amortization		(9,817	)		(9,536	)
Leases – right of use assets		(269	)		(388	)
Foreign withholding tax		-			(100	)
Inventories		(628	)		-
Total deferred tax liabilities		(10,714	)		(10,024	)
Net deferred tax assets	$	977		$	1,866

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

	2021			2020			2019
Balance at beginning of year	$	878		$	1,130		$	951
Additions based on tax positions related to the current year		153			177			372
Reductions due to lapse of applicable statute of limitations		(96	)		(139	)		(193	)
Settlements		(127	)		(290	)		-
Balance at end of year	$	808		$	878		$	1,130