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Goodwill and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of definite-lived other intangible assets

   December 31,
2019
 
   U.S. dollars in thousands 
     
Core technology  $312 
Customer relationships   545 
    857 
Less – accumulated amortization   (96)
Other intangible assets, net  $761 
Schedule of goodwill

   Year ended December 31, 2019 
   Billing and
related
services
   Messaging   Total 
   U.S. dollars in thousands 
             
Balance as of January 1, 2019  $5,430   $          -   $5,430 
Acquisitions   -    2,466    2,466 
Functional currency translation adjustments   -    14    14 
Balance as of December 31, 2019  $5,430   $2,480   $7,910