Schedule of Revenues Disaggregated by Business Segment and Service Offered to Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 301,205	$ 321,816
National Retail Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	23,995	19,313
Fintech [Member]
Disaggregation of Revenue [Line Items]
Revenues	26,563	19,887
Fintech [Member] | BOSS Revolution Money Transfer [Member]
Disaggregation of Revenue [Line Items]
Revenues	24,239	17,554
Fintech [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,324	2,333
net2 phone [Member]
Disaggregation of Revenue [Line Items]
Revenues	19,927	16,950
Traditional Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	230,720	265,666
Traditional Communications [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	7,478	8,754
Traditional Communications [Member] | IDT Digital Payments [Member]
Disaggregation of Revenue [Line Items]
Revenues	99,986	109,048
Traditional Communications [Member] | BOSS Revolution Calling [Member]
Disaggregation of Revenue [Line Items]
Revenues	71,222	86,253
Traditional Communications [Member] | IDT Global [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 52,034	$ 61,611