Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity - Warrants (Details)

v3.22.4
Shareholders' Equity - Warrants (Details)
 12 Months Ended 24 Months Ended
Nov. 04, 2019
USD ($)
shares
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
shares
Dec. 31, 2022
$ / shares
Nov. 22, 2019
$ / shares
shares
Nov. 04, 2019
$ / shares
shares
Class of Warrant or Right [Line Items]              
Warrants Issued   0 0        
Number of Warrants   9,545,691 73,905,211 74,562,211      
Warrants expired   64,359,520          
Warrants and Rights Outstanding | $   $ 0          
Financing Warrants              
Class of Warrant or Right [Line Items]              
Warrants exercised (in shares)     657,000        
Cash received | $     $ 174,000        
Warrants expired   63,609,520          
Financing Warrants | 2019 Senior Notes.              
Class of Warrant or Right [Line Items]              
Warrants Issued 1,800            
Denomination of principal amount of notes | $ $ 1            
Number of common shares for each warrant             1
Number of Warrants             64,449,020
Warrant exercisable term             36 months
Financing Warrants | 2019 Senior Notes. | Maximum              
Class of Warrant or Right [Line Items]              
Exercise Price | $ / shares             $ 0.39
Financing Warrants | 2019 Senior Notes. | Minimum              
Class of Warrant or Right [Line Items]              
Exercise Price | $ / shares             $ 0.33
Founder Separation Warrants              
Class of Warrant or Right [Line Items]              
Number of common shares for each warrant           1  
Number of Warrants   9,045,691       9,045,691  
Exercise Price | $ / shares         $ 1.05 $ 1.05  
Consultant Warrants              
Class of Warrant or Right [Line Items]              
Warrants Issued       1,250,000      
Number of common shares for each warrant       1      
Number of Warrants   500,000          
Exercise Price | $ / shares         $ 0.33    
Warrants expired   750,000