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BALANCE SHEETS - Parenthetical - shares
Dec. 31, 2021
Dec. 31, 2020
Details    
Common Stock, Shares Authorized 5,000,000 5,000,000
Common Stock, Shares, Issued 2,780,707 2,780,707
Common Stock, Shares, Outstanding 1,255,640 1,255,640
Treasury Stock, Shares 1,525,067 1,525,067