Annual report pursuant to Section 13 and 15(d)

Warrants (Details)

v3.21.1
Warrants (Details) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Outstanding at beginning of year 50,187    
Expired 0 (79)  
Outstanding at end of year 77,262 50,187  
Warrant      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Outstanding at beginning of year 2,875,006 2,722,967  
Issued 25,000 600,000  
Exercised (45,417) (447,961)  
Expired (127,889)    
Outstanding at end of year 2,726,700 2,875,006 2,722,967
Weighted Average Exercise Price, Outstanding at beginning of year $ 14.14 $ 15.00  
Weighted Average Exercise Price, Issued $ 12.50 $ 3.13  
Weighted Average Exercise Price, Exercised 4.80 4.80  
Weighted Average Exercise Price, Forfeited $ 139.28    
Weighted Average Exercise Price, Outstanding at end of year $ 8.41 $ 14.14 $ 15.00
Weighted Average Remaining Term in Years, Outstanding 2 years 5 months 12 days 3 years 4 months 13 days 4 years 18 days
Weighted Average Remaining Term in Years, Issued 4 years 4 days 4 years 9 months 4 days  
Weighted Average Remaining Term in Years, Exercised 2 years 3 months 15 days 3 years 3 months 18 days  
Weighted Average Remaining Term in Years, Forfeited 0 years