Annual report pursuant to Section 13 and 15(d)

Warrants - Additional Information (Details)

v3.22.2.2
Warrants - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Series B Convertible Preferred Stock      
Class Of Warrant Or Right [Line Items]      
Fair value adjustment of warrants $ 462 $ 462  
Series B Convertible Preferred Stock Warrants      
Class Of Warrant Or Right [Line Items]      
Warrants additional extended expiration period 2 years    
Series B Convertible Preferred Stock Warrants | Series B Convertible Preferred Stock      
Class Of Warrant Or Right [Line Items]      
Number of warrants outstanding and exercisable     118,029
Warrants exercise price, outstanding and exercisable     $ 20.80