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CONDENSED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares
Jun. 30, 2022
Dec. 31, 2021
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 0.00001 $ 0.00001
Common stock, shares authorized (in shares) 500,000,000 500,000,000
Common stock, shares issued (in shares) 147,834,377 146,402,991
Common stock, shares outstanding (in shares) 147,834,377 146,402,991