Quarterly report pursuant to Section 13 or 15(d)

Warrants - Additional Information (Details)

v3.20.2
Warrants - Additional Information (Details) - USD ($)
3 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Class Of Warrant Or Right [Line Items]    
Fair value adjustment of warrants $ 266,000 $ 0
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 $ 266,000 $ 0
Number of common shares into which each warrant may be exchanged 5