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Derivative Warrant Liabilities - Schedule of Fair Value Assumption (Details) (10-K) (Parenthetical)
12 Months Ended
Sep. 04, 2018
Nov. 28, 2016
Dec. 31, 2017
Dec. 31, 2016
Reverse stock split 1:15 reverse stock split one-to-nine Reverse Stock Split    
September 4, 2018 [Member]        
Reverse stock split     1:15 Reverse Split 1:15 Reverse Split