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Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Unusual or Infrequent Item, or Both [Line Items]
Stockholders' Equity Attributable to Parent	$ 106,622	$ 102,103	$ 104,397	$ 100,095	$ 97,595	$ 93,932
Post Retirement Benefit Plan Items
Unusual or Infrequent Item, or Both [Line Items]
Stockholders' Equity Attributable to Parent	948	1,247		$ 1,075		$ 1,375
Other comprehensive loss before reclassifications	(161)	(161)
Income tax benefit	$ 34	$ 33

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

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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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