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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2021
Sep. 30, 2021
Statement Of Financial Position [Abstract]    
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 145,000,000 145,000,000
Common stock, shares issued 104,798,000 104,327,000
Common stock, shares outstanding 104,798,186 104,327,000