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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Cash flows from operating activities:    
Loss for the period $ (3,810,277) $ (5,087,526)
Adjustments to reconcile (loss) for the period to net cash used in operating activities:    
Depreciation 58,789 33,024
Stock-based compensation 1,134,531 1,208,236
Change in the fair value of warrants with down-round protection (160,028) (191,075)
Linkage difference on principal of loans from stockholders (1,963) 26
Changes in assets and liabilities:    
Increase in accounts receivable (4,175) (28,615)
Decrease in inventory 22,113 49,255
(Increase) decrease in other current assets (24,113) 222,952
(Decrease) increase in accounts payable (7,404) 26,829
Increase in other current liabilities 350,318 171,028
Decrease in liability for employee rights upon retirement   (10,148)
Net cash used in operating activities (2,442,209) (3,606,014)
Cash flows from investing activities:    
Purchase of property and equipment (1,912) (4,849)
Net cash used in investing activities (1,912) (4,849)
Cash flows from financing activities    
Cash dividend on Series A Preferred Stock 2,686
Proceeds allocated to Series C Preferred Stock, net of cash issuance expenses 3,022,002
Proceeds allocated to Series C Warrants, net of cash issuance expenses 1,495,541
Proceeds allocated to Common Stock from Series D offering, net of cash issuance expenses 1,318,350
Proceeds allocated to Series D Warrants, net of cash issuance expenses 1,100,140
Net cash provided by (used in) financing activities 2,418,490 4,520,229
Effect of exchange rate changes on cash and cash equivalents (10,806) 74,420
Increase (decrease) in cash and cash equivalents (36,437) 983,786
Cash and cash equivalents at beginning of the period 53,782 148,836
Cash and cash equivalents at end of the period $ 17,345 $ 1,132,622