Schedule of Revenues Disaggregated by Business Segment and Service Offered to Customers (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 299,643	$ 299,295	$ 896,946	$ 935,047
National Retail Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	25,712	18,073	74,930	57,208
Fintech [Member]
Disaggregation of Revenue [Line Items]
Revenues	31,526	21,787	86,076	61,995
Fintech [Member] | BOSS Revolution Money Transfer [Member]
Disaggregation of Revenue [Line Items]
Revenues	27,593	19,441	76,871	54,644
Fintech [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,933	2,346	9,205	7,351
net2 phone [Member]
Disaggregation of Revenue [Line Items]
Revenues	20,677	18,392	60,957	53,136
Traditional Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	221,728	241,043	674,983	762,708
Traditional Communications [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	6,857	7,894	21,806	25,057
Traditional Communications [Member] | IDT Digital Payments [Member]
Disaggregation of Revenue [Line Items]
Revenues	101,559	101,030	301,165	316,207
Traditional Communications [Member] | BOSS Revolution Calling [Member]
Disaggregation of Revenue [Line Items]
Revenues	63,245	77,646	201,169	246,729
Traditional Communications [Member] | IDT Global [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 50,067	$ 54,473	$ 150,843	$ 174,715