Schedule of Revenues Disaggregated by Business Segment and Service Offered to Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 1,231,495	$ 1,205,778	$ 1,238,854
National Retail Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	128,793	103,141	77,115
Fintech [Member]
Disaggregation of Revenue [Line Items]
Revenues	154,610	120,721	86,610
Fintech [Member] \| BOSS Revolution Money Transfer [Member]
Disaggregation of Revenue [Line Items]
Revenues	139,828	108,332	76,928
Fintech [Member] \| Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	14,782	12,389	9,682
Net2 phone [Member]
Disaggregation of Revenue [Line Items]
Revenues	87,875	82,325	72,388
Traditional Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	860,217	899,591	1,002,741
Traditional Communications [Member] \| Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	23,133	27,827	33,269
Traditional Communications [Member] \| IDT Digital Payments [Member]
Disaggregation of Revenue [Line Items]
Revenues	416,312	407,430	417,057
Traditional Communications [Member] \| BOSS Revolution [Member]
Disaggregation of Revenue [Line Items]
Revenues	211,163	263,215	322,134
Traditional Communications [Member] \| IDT Global [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 209,609	$ 201,119	$ 230,281