Annual report pursuant to Section 13 and 15(d)

Warrants (Details)

v3.19.3.a.u2
Warrants (Details) - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding at beginning of year   121,478    
Outstanding at end of year 121,478 50,187 121,478  
Weighted Average Remaining Term in Years, Outstanding 2 years 3 months      
Warrant        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding at beginning of year   2,722,967 630,415  
Number of Shares Awarded   600,000 2,343,777  
Exercised   447,961 251,225  
Outstanding at end of year 2,722,967 2,875,006 2,722,967 630,415
Weighted Average Exercise Price, Outstanding at beginning of year   $ 15.00 $ 48.90  
Weighted Average Exercise Price, Issued   $ 3.13 $ 4.80  
Weighted Average Exercise Price, Exercised   4.80 4.80  
Weighted Average Exercise Price, Outstanding at end of year $ 15.00 $ 14.14 $ 15.00 $ 48.90
Weighted Average Remaining Term in Years, Outstanding   3 years 4 months 13 days 4 years 18 days 4 years 2 months 23 days
Weighted Average Remaining Term in Years, Issued   4 years 9 months 4 days 4 years 3 months 18 days  
Weighted Average Remaining Term in Years, Exercised   3 years 3 months 18 days 4 years 3 months 18 days