Registration of securities issued in business combination transactions

Equity - Schedule of Warrants Activity (Details) (10-K)

v3.19.3
Equity - Schedule of Warrants Activity (Details) (10-K) - $ / shares
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Equity [Abstract]    
Number of Warrants Outstanding, beginning balance 2,362,615 922,203
Number of Warrants Outstanding, Granted 1,603,214 1,699,857
Number of Warrants Outstanding, Exercised (100,000)
Number of Warrants Outstanding, Forfeited (181,067) (259,445)
Number of Warrants Outstanding, ending balance 3,684,762 2,362,615
Number of Warrants Outstanding, Exercisable 3,684,762  
Weighted-average exercise price, Outstanding beginning balance $ 16.34 $ 49.80
Weighted-average exercise price, Granted 2.82 3.50
Weighted-average exercise price, Exercised 3.50
Weighted-average exercise price, Forfeited 50.28 51.01
Weighted-average exercise price, Outstanding ending balance 9.14 $ 16.34
Weighted-average exercise price, Exercisable $ 9.14  
Weighted Average Remaining Life In Years, Outstanding beginning balance 2 years 2 months 12 days 1 year 8 months 12 days
Weighted Average Remaining Life, Granted 0 years 0 years
Weighted Average Remaining Life, Exercised 0 years 0 years
Weighted Average Remaining Life, Forfeited 7 years 1 month 6 days 0 years
Weighted Average Remaining Life, Outstanding ending balance 7 years 1 month 6 days 2 years 2 months 12 days
Weighted Average Remaining Life, Exercisable 7 years 1 month 6 days