Quarterly report pursuant to Section 13 or 15(d)

Warrants - Additional Information (Details)

v3.21.2
Warrants - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Sep. 30, 2020
Class Of Warrant Or Right [Line Items]      
Fair value adjustment of warrants   $ 368  
Series B Convertible Preferred Stock Warrants      
Class Of Warrant Or Right [Line Items]      
Warrants additional extended expiration period 2 years    
Fair value adjustment of warrants $ 368    
Series B Convertible Preferred Stock Warrants | Series B Convertible Preferred Stock      
Class Of Warrant Or Right [Line Items]      
Number of warrants outstanding     118,029
Warrants exercise price     $ 20.80