CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Accounts receivable, allowance for uncollectible accounts	$ 444	$ 375
Preferred Stock, par value	$ 0	$ 0
Preferred Stock, shares authorized	20,000,000	20,000,000
Preferred Stock, shares outstanding	0	0
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	13,264,129	13,112,202
Treasury stock, shares	1,646,420	1,646,420

Amount of allowance for credit loss on accounts receivable, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Face amount or stated value per share of common stock.

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Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer.

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-Publisher FASB
-Name Accounting Standards Codification
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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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