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Balance Sheets (Parentheticals) - $ / shares
Mar. 31, 2022
Dec. 31, 2021
Statement of Financial Position [Abstract]    
Common stock, par value (in Dollars per share) $ 0.1 $ 0.1
Common stock, shares authorized 15,000,000 15,000,000
Common stock, shares issued 7,814,165 7,814,165
Common stock, shares outstanding 7,742,864 7,741,864
Treasury stock 71,301 72,301