Registration statement for securities of certain foreign private issuers

Subsequent events - Disclosure Of Shares Sold Pursuant To Share Purchase Agreement (Details)

v3.20.1
Subsequent events - Disclosure Of Shares Sold Pursuant To Share Purchase Agreement (Details) - Aspire Agreement [Member] - Aspire Capital Fund LLC [Member] - USD ($)
 12 Months Ended
Feb. 13, 2020
Feb. 06, 2020
Jan. 23, 2020
Jan. 18, 2020
Jan. 17, 2020
Jan. 10, 2020
Jan. 08, 2020
Jan. 06, 2020
Jan. 03, 2020
Dec. 23, 2019
Dec. 31, 2019
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Issue of equity                   $ 423,440 $ 5,304,531
Events After Reporting Period [member]                      
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Common stock shares issued       4,408,048              
Issue of equity       $ 2,071,930              
Events After Reporting Period [member] | Grant Date February Thirteen Two Thousand Twenty [Member]                      
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Common stock shares issued 708,048                    
Issue of equity $ 300,000                    
Events After Reporting Period [member] | Grant Date February Six Two Thousand Twenty [Member]                      
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Common stock shares issued   600,000                  
Issue of equity   $ 282,000                  
Events After Reporting Period [member] | Grant Date January Twenty Three Two Thousand Twenty [Member]                      
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Common stock shares issued     600,000                
Issue of equity     $ 295,320                
Events After Reporting Period [member] | Grant Date Seventeen Two Thousand Twenty [Member]                      
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Common stock shares issued         600,000            
Issue of equity         $ 303,000            
Events After Reporting Period [member] | Grant Date January Ten Two Thousand Twenty [Member]                      
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Common stock shares issued           500,000          
Issue of equity           $ 247,550          
Events After Reporting Period [member] | Grant Date January Eight Two Thousand Twenty [Member]                      
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Common stock shares issued             400,000        
Issue of equity             $ 195,160        
Events After Reporting Period [member] | Grant Date January Six Two Thousand Twenty [Member]                      
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Common stock shares issued               500,000      
Issue of equity               $ 229,300      
Events After Reporting Period [member] | Grant Date January Three Two Thousand Twenty [Member]                      
Disclosure Of Shares Sold Pursuant To Share Purchase Agreement [Line Items]                      
Common stock shares issued                 500,000    
Issue of equity                 $ 219,600