Quarterly report pursuant to Section 13 or 15(d)

Schedule of common stock warrants (Details)

v3.21.2
Schedule of common stock warrants (Details) - shares
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Series B Common Stock Warrants [Member]    
Class of Warrant or Right [Line Items]    
Outstanding balance 87,456 87,456
Issued
Exercised
Outstanding balance 87,456 87,456
Series D Common Stock Warrants [Member]    
Class of Warrant or Right [Line Items]    
Outstanding balance 6,252,954 6,252,954
Issued
Exercised
Outstanding balance 6,252,954 6,252,954
Series B and D Common Stock Warrants [Member]    
Class of Warrant or Right [Line Items]    
Outstanding balance 6,340,410 6,340,410
Issued
Exercised
Outstanding balance 6,340,410 6,340,410
Series H Warrants [Member]    
Class of Warrant or Right [Line Items]    
Outstanding balance 689,159 689,159
Issued
Exercised
Outstanding balance 689,159 689,159