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Consolidated Balance Sheet (Parentheticals) - $ / shares
$ / shares in Thousands
Dec. 31, 2021
Dec. 31, 2020
Common stock, par value (in dollars per share) $ 0 $ 0
Common stock, shares authorized (in shares) 10,000,000 10,000,000
Common stock, shares issued (in shares) 7,330,548 7,308,685
Common stock, shares outstanding (in shares) 5,888,737 6,379,323
Treasury stock, shares (in shares) 1,441,811 929,362