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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Dec. 31, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Common stock, par value $ 0.10 $ 0.10
Common stock, authorized 24,000,000 24,000,000
Common stock, issued 5,739,114 5,739,114
Common stock, outstanding 5,583,956 5,566,230
Treasury shares 155,158 172,884