Note 6 - Cash, Cash Equivalents, and Restricted Cash and Cash Equivalents - Schedule of Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Jul. 31, 2026	Jul. 31, 2025
Cash and cash equivalents	$ 220,686	$ 226,505
Restricted cash and cash equivalents	138,650	115,327
TOTAL CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AND CASH EQUIVALENTS	359,336	341,832
IDT Financial Services Gibraltar [Member]
Restricted cash and cash equivalents	97,921	104,161
IDT Services Malta [Member]
Restricted cash and cash equivalents	21,867	0
Disbursement Payments VIE [Member]
Restricted cash and cash equivalents	18,102	11,000
Other [Member]
Restricted cash and cash equivalents	$ 759	$ 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.