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Common Stock, and Warrants With-Down Round Protection - Schedule of Stock Grants, by Exercise Price Range (Details)
12 Months Ended
Dec. 31, 2019
$ / shares
shares
Outstanding Balance 2,028,085
Exercisable 1,724,194
Exercise Price One [Member]  
Exercise price | $ / shares $ 4.50
Outstanding Balance 1,631,873
Exercisable 1,327,982
Weighted average remaining contractual life (years) 7 years 6 months 3 days
Exercise Price Two [Member]  
Exercise price | $ / shares $ 6.25
Outstanding Balance 344,212
Exercisable 344,212
Weighted average remaining contractual life (years) 2 years 2 months 8 days
Exercise Price Three [Member]  
Exercise price | $ / shares $ 7.00
Outstanding Balance 2,000
Exercisable 2,000
Weighted average remaining contractual life (years) 4 years 6 months
Exercise Price Four [Member]  
Exercise price | $ / shares $ 7.75
Outstanding Balance 50,000
Exercisable 50,000
Weighted average remaining contractual life (years) 7 years 3 months 4 days