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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Schedule of deferred tax assets
   December 31, 
   2020   2019 
         
Reserves and allowances  $190   $173 
Temporary differences   3,644    2,204 
Issuance costs   957    - 
Loss carryforward   22,168    15,406 
           
Deferred tax assets before valuation allowance   26,959    17,783 
Less - valuation allowance   (26,959)   (17,783)
           
Net deferred tax assets  $-   $-