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Reportable Segments (Tables)
 12 Months Ended
Dec. 31, 2019
Segment Reporting [Abstract]  
Schedule of segments commencing from the date of acquisitions

   Year ended December 31, 2019 
   Billing and
Related
Services		   Messaging*   Total 
   U.S. dollars in thousands 
             
Revenues  $16,547   $6,117   $22,664 
                
Operating income  $4,254   $786   $5,040 

 

*The results of operations reported for the year ended December 31, 2019, includes the results of operations commencing the second quarter of 2019 (see Note 1a(2)).