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Share Capital - Schedule of Stock Options Outstanding (Details) (10-K) (Parenthetical) - $ / shares
12 Months Ended
Nov. 28, 2016
Dec. 31, 2017
Jun. 30, 2018
Dec. 31, 2016
Per share   $ 0.01 $ 0.01 $ 0.01
Reverse stock split one-to-nine Reverse Stock Split      
September 4, 2018 [Member]        
Reverse stock split   one-for-15 reverse stock split