Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Details of Earnings Before Income Taxes

Details of earnings before income taxes are as follows:

	2022		2021		2020
	(In thousands)
Domestic	$	83,680	$	74,509	$	65,908
Foreign		4,037		4,114		(927	)
Total	$	87,717	$	78,623	$	64,981

Schedule of Provision (Benefit) for Income Taxes

The provision (benefit) for income taxes is as follows:

	2022			2021			2020
	(In thousands)
Current:
Federal	$	20,089		$	15,299		$	14,482
State		4,720			3,556			3,419
Foreign		2,031			1,939			819
Deferred:
Federal		(4,289	)		(1,774	)		(2,495	)
State		(955	)		(600	)		(644	)
Foreign		(375	)		(681	)		57
Total	$	21,221		$	17,739		$	15,638

Reconciliation of Provision for Income Taxes

The provision for income tax differs from the amount that would be provided by applying the statutory U.S. corporate income tax rate in each year due to the following items:

	2022			2021			2020
	(In thousands)
Provision at statutory rate	$	18,421		$	16,511		$	13,646
State income taxes, net of federal tax benefit		2,938			2,288			2,196
Valuation allowance		571			168			1,302
Foreign - tax rate differential and other		388			606			(267	)
Federal tax credits		(1,016	)		(770	)		(517	)
Compensation subject to section 162(m)		693			685			110
Stock based compensation		(523	)		(1,510	)		(682	)
Other		(251	)		(239	)		(150	)
Actual provision	$	21,221		$	17,739		$	15,638

Components of Deferred Income Taxes

The components of deferred income taxes as of December 31 are as follows:

	2022			2021
	(In thousands)
Deferred tax assets:
Reserve for receivables and inventory	$	2,972		$	2,532
Accrued compensation		2,209			2,641
Reserves and payables		2,340			3,101
Accrued post-retirement medical benefits		1,054			1,381
Net operating loss and credit carryforwards		2,827			2,260
Deferred compensation		1,139			1,041
Accrued qualified plan benefits		1,193			1,034
Accrued stock-based compensation		1,120			1,212
Deferred revenue		4,793			2,530
Operating lease liabilities		1,262			959
Research and development costs		2,625			—
Other		987			967
Total gross deferred tax assets		24,521			19,658
Less: valuation allowance		(2,690	)		(2,169	)
Total net deferred tax assets		21,831			17,489
Deferred tax liabilities:
Property, plant and equipment		4,454			5,056
Intangible assets		7,247			8,475
Prepaids		238			413
Operating lease assets		1,258			949
Other		525			452
Total deferred tax liabilities		13,722			15,345
Net deferred tax assets	$	8,109		$	2,144

Schedule of Changes in Gross Liability for Unrecognized Tax Benefits

Changes in the Company's gross liability for unrecognized tax benefits, excluding interest and penalties, were as follows:

	2022			2021
	(In thousands)
Balance at beginning of year	$	1,172		$	1,123
(Reductions) Increases in unrecognized tax benefits as a result of positions taken during the prior year		(89	)		52
Increases in unrecognized tax benefits as a result of positions taken during the    current year		231			230
Reductions to unrecognized tax benefits as a result of a lapse of the applicable    statute of limitations		(275	)		(233	)
Balance at end of year	$	1,039		$	1,172