Annual report pursuant to Section 13 and 15(d)

Stock- Based Compensation (Details 1)

v3.20.4
Stock- Based Compensation (Details 1) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding beginning 5,029,119 3,519,769
Granted 1,242,144 2,650,666
Exercised (416)  
Forfeited (242,060) (1,141,316)
Outstanding ending 3,519,769 5,029,119
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Outstanding beginning $ 3.00 $ 4.22
Granted 4.02 1.46
Exercised 3.78  
Forfeited 4.24 3.17
Outstanding ending $ 4.22 $ 3.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Life [Roll Forward]    
Outstanding beginning 8 years 8 months 19 days 7 years 10 months 28 days
Outstanding ending 7 years 10 months 28 days 7 years 11 months 15 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Aggregate Intrinsic Value [Roll Forward]    
Outstanding beginning
Exercised [1]  
Outstanding ending
[1] represents amount less than $1,000