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BALANCE SHEETS (Parenthetical) - $ / shares
Mar. 31, 2020
Mar. 31, 2019
Stockholders' equity    
Common stock, shares par value
Common stock, shares authorized 22,000,000 22,000,000
Common stock, shares issued 3,461,022 3,461,022
Common stock, shares outstanding 3,461,022 3,461,022