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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 100,095	$ 93,932
Ending Balance	104,397	97,595
Post Retirement Benefit Plan Items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	1,075	1,375
Other comprehensive loss before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income	(81)	(81)
Income tax benefit	17	17
Ending Balance	$ 1,011	$ 1,311

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Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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