Quarterly report pursuant to Section 13 or 15(d)

Common Stock Warrants - Summary of Warrant Activity (Details) (Parenthetical)

v3.19.2
Common Stock Warrants - Summary of Warrant Activity (Details) (Parenthetical) - $ / shares
Sep. 28, 2018
Aug. 08, 2018
Feb. 06, 2019
May 31, 2018
Conversion price per share     $ 0.36  
Warrant [Member]        
Warrant initial exercise price $ 0.75 $ 0.75    
Conversion price per share   0.40    
Warrant adjusted downward per share   $ 0.40    
Warrant equity percentage 90.00% 90.00%    
Maximum [Member] | Warrant [Member]        
Warrant initial exercise price $ 0.75 $ 0.75    
May 2018 Private Placement [Member]        
Warrant initial exercise price       $ 0.75
May 2018 Private Placement [Member] | Maximum [Member]        
Warrant initial exercise price       $ 0.75