Quarterly report pursuant to Section 13 or 15(d)

Subsequent Event - Additional Information (Details)

v3.20.2
Subsequent Event - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended
Aug. 31, 2020
Jun. 30, 2020
Dec. 31, 2019
Subsequent Event [Line Items]      
Common stock, shares authorized   300,000,000 300,000,000
Common stock, par value   $ 0.0001 $ 0.0001
Forecast [Member] | August 2020 Offering [Member]      
Subsequent Event [Line Items]      
Common stock, shares authorized 34,285,714    
Proceeds from issuance of common stock $ 10.6    
Forecast [Member] | August 2020 Offering [Member] | Placement Agent Warrants [Member]      
Subsequent Event [Line Items]      
Warrants issued price per share $ 0.4375    
Forecast [Member] | August 2020 Offering [Member] | Placement Agent Warrants [Member] | Maximum [Member]      
Subsequent Event [Line Items]      
Placement agent warrants issued 2,399,999    
Forecast [Member] | August 2020 Offering [Member] | Warrant [Member]      
Subsequent Event [Line Items]      
Warrants issued during period 34,285,714    
Common stock, par value $ 0.35