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Reportable Segments (Details) - Schedule of segments commencing from the date of acquisitions - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reportable Segments (Details) - Schedule of segments commencing from the date of acquisitions [Line Items]      
Revenues $ 26,331 $ 23,374 $ 22,664
Operating income 6,828 5,463 5,040
Billing and Related Services [Member]      
Reportable Segments (Details) - Schedule of segments commencing from the date of acquisitions [Line Items]      
Revenues 14,355 14,628 16,547
Operating income 4,818 4,412 4,254
Messaging [Member]      
Reportable Segments (Details) - Schedule of segments commencing from the date of acquisitions [Line Items]      
Revenues 11,976 8,746 6,117 [1]
Operating income $ 2,010 $ 1,051 $ 786 [1]
[1] The results of operations reported for the year ended December 31, 2019, include the results of operations of Messaging commencing the second quarter of 2019 (see Note 1a(3)).