Note 6 - Cash, Cash Equivalents, and Restricted Cash and Cash Equivalents - Schedule of Restricted Cash (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Jul. 31, 2025
Cash and cash equivalents	$ 214,957	$ 226,505
Total restricted cash and cash equivalents	128,385	115,327
Total cash, cash equivalents, and restricted cash and cash equivalents	343,342	341,832
IDT Financial Services Gibraltar [Member]
Total restricted cash and cash equivalents	105,665	104,161
Disbursement Payments VIE [Member]
Total restricted cash and cash equivalents	21,878	11,000
Other [Member]
Total restricted cash and cash equivalents	$ 843	$ 166

Amount of cash and cash equivalent restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.