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CONDENSED BALANCE SHEETS (Parenthetical) - $ / shares
Mar. 31, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Common stock, par value $ .01 $ 0.01
Common stock, shares authorized 5,714,000 5,714,000
Common stock, shares issued 1,754,000 1,748,000
Common stock, shares outstanding 1,754,000 1,748,000