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Taxes on Income (Tables)
12 Months Ended
Dec. 31, 2018
Income Tax Disclosure [Abstract]  
Schedule of deferred tax assets

   December 31, 
   2018   2017   2016 
   USD in thousands 
Deferred tax assets:            
Operating loss carryforward   18,711    8,838    2,636 
                
Deferred taxes due to carryforward losses   4,303    2,033    606 
    4,303    2,033    606 
                
Valuation allowance   (4,303)   (2,033)   (606)
Net deferred tax asset   --    --    --