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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Jun. 30, 2023
Sep. 30, 2022
Jun. 30, 2022
Sep. 30, 2021
Statement of Financial Position [Abstract]        
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001 $ 0.001  
Preferred stock, shares authorized (in shares) 1,000,000 1,000,000 1,000,000  
Preferred stock, shares issued (in shares) 0 0 0  
Preferred stock, shares outstanding (in shares) 0 0 0  
Common stock, par value (in dollars per share) $ 0.001 $ 0.001 $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 120,000,000 120,000,000 120,000,000 120,000,000
Common stock, shares issued (in shares) 45,507,401 44,680,429 44,396,263 44,168,745
Common stock, shares outstanding (in shares) 45,507,401 44,680,429 44,396,263 44,168,745