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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands								3 Months Ended	9 Months Ended
	Aug. 16, 2021	Jul. 22, 2021	May 17, 2021	Apr. 22, 2021	Mar. 15, 2021	Feb. 22, 2021	Jan. 28, 2021	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Jun. 17, 2021	Jun. 16, 2021	Apr. 26, 2021	Dec. 31, 2020
Stockholders' Equity
Cash dividend declared per common share		$ 0.125		$ 0.125			$ 0.125
Cash dividend paid per common share	$ 0.125		$ 0.125			$ 0.125
Special dividend paid per common share					$ 1.00
Stock Repurchase Program, Authorized Amount													$ 6,000
Common Stock, Par or Stated Value Per Share								$ 1	$ 1				$ 1.00	$ 1
Common stock, Authorized shares								25,000,000	25,000,000		25,000,000	10,000,000		10,000,000
Treasury stock purchased								78,491
Shares repurchased average price								$ 27.41
Payments for Repurchase of Common Stock								$ 2,200	$ 2,197	$ 5,703

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Special dividends paid during the period for each share of common stock outstanding.

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