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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
CONSOLIDATED BALANCE SHEETS    
Accounts receivable, reserves (in dollars) $ 2,666 $ 2,409
Common stock, par value (in dollars per share) $ 1.00 $ 1.00
Common Stock, Shares Authorized 24,000,000 24,000,000
Common Stock, Shares, Issued 9,797,204 9,872,894
Common Stock, Shares, Outstanding 9,797,204 9,872,894