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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
Sep. 30, 2022
Dec. 31, 2021
Stockholders' equity:    
Preferred stock, par or stated value per share (in dollars per share) $ 0.001 $ 0.001
Preferred stock, authorized (in shares) 10,000,000 10,000,000
Preferred stock, shares outstanding (in shares) 0 0
Preferred stock, shares issued (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, authorized (in shares) 300,000,000  
Common stock, issued (in shares) 33,320,891 31,530,682
Common stock, outstanding (in shares) 33,320,891 31,530,682