Quarterly report pursuant to Section 13 or 15(d)

Warrants (Details)

v3.21.2
Warrants (Details) - Warrant - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding at beginning of year 2,726,700 2,875,006 2,875,006  
Issued 4,098,965 25,000    
Exercised (10,417)      
Expired   (127,889)    
Outstanding at end of year 6,815,248 2,772,117 2,726,700 2,875,006
Weighted Average Exercise Price, Outstanding at beginning of year $ 8.41 $ 14.14 $ 14.14  
Weighted Average Exercise Price, Issued 3.39 12.50    
Weighted Average Exercise Price, Exercised 4.80      
Weighted Average Exercise Price, Expired   139.28    
Weighted Average Exercise Price, Outstanding at end of year $ 5.40 $ 8.35 $ 8.41 $ 14.14
Weighted Average Remaining Term in Years, Outstanding 3 years 7 months 20 days 2 years 8 months 8 days 2 years 5 months 12 days 3 years 4 months 13 days
Weighted Average Remaining Term in Years, Issued 4 years 11 months 4 days 4 years 3 months 3 days    
Weighted Average Remaining Term in Years, Exercised 1 year 6 months 18 days      
Weighted Average Remaining Term in Years, Expired   0 years