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Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Loans receivable, allowance for loan losses $ 10,525,640 $ 9,617,024
Common stock, par value (in dollars per share) $ 0.10 $ 0.10
Common stock, authorized (in shares) 10,000,000 10,000,000
Common stock, issued (in shares) 6,919,503 6,919,503
Treasury stock, shares (in shares) 2,534,472 2,553,851