Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
OPERATING ACTIVITIES
Net income		$ 44,366	$ 29,005	$ 96,891
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		20,136	18,115	17,764
Deferred income taxes		12,601	4,801	(32,793)
Provision for doubtful accounts receivable and reserve for settlement assets		2,198	2,330	1,782
Net unrealized loss (gain) from marketable securities		3,368	18,960	(3,262)
Stock-based compensation	[1]	4,518	1,930	1,490
Other		3,175	3,379	(4,096)
Changes in assets and liabilities:
Trade accounts receivable		4,726	(8,279)	977
Settlement assets, disbursement prefunding, prepaid expenses, other current assets, and other assets		(17,503)	(21,046)	(6,952)
Trade accounts payable, accrued expenses, settlement liabilities, other current liabilities, and other liabilities		(17,216)	(1,110)	(264)
Customer deposits at IDT Financial Services Limited (Gibraltar-based bank)		(4,200)	(15,966)	(6,906)
Deferred revenue		(2,029)	(2,712)	1,989
Net cash provided by operating activities		54,140	29,407	66,620
INVESTING ACTIVITIES
Capital expenditures		(21,958)	(21,879)	(16,765)
Payments for acquisitions, net of cash acquired			(7,552)	(3,673)
Cash acquired from acquisition of interest in variable interest entity				3,336
Purchase of Rafael Holdings, Inc. Class B common stock and warrant				(5,000)
Exercise of warrant to purchase shares of Rafael Holdings, Inc. Class B common stock				(1,000)
Purchase of convertible preferred stock in equity method investment		(840)	(1,051)	(4,000)
Purchases of debt securities and equity investments		(59,872)	(24,454)	(43,187)
Proceeds from maturities and sales of debt securities and redemption of equity investments		49,211	21,157	26,230
Net cash used in investing activities		(33,459)	(33,779)	(44,059)
FINANCING ACTIVITIES
Distributions to noncontrolling interests		(348)	(514)	(848)
Payment for acquisition of warrant in variable interest entity				(791)
Proceeds from other liabilities		300	2,301	729
Repayment of other liabilities		(2,037)	(1,319)	(108)
Proceeds from sale of redeemable equity in subsidiary			10,000
Proceeds from borrowings under revolving credit facility		27,383	2,566
Repayments of borrowings under revolving credit facility		(27,383)	(2,566)
Proceeds from exercise of stock options		172	137	687
Repurchases of Class B common stock		(13,896)	(26,222)	(4,192)
Net cash used in financing activities		(15,809)	(15,617)	(4,523)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash and cash equivalents		4,389	(17,365)	7,656
Net increase (decrease) in cash, cash equivalents, and restricted cash and cash equivalents		9,261	(37,354)	25,694
Cash, cash equivalents, and restricted cash and cash equivalents at beginning of year		189,562	226,916	201,222
Cash, cash equivalents, and restricted cash and cash equivalents at end of year		198,823	189,562	226,916
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments made for interest		536	461	486
Cash payments made for income taxes		777	109	193
SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Conversion of equity method investment’s secured promissory notes into convertible preferred stock		4,038
Stock issued to certain executive officers for bonus payments		615
Liabilities incurred for acquisitions			7,849	628
Shares of the Company’s Class B common stock issued for acquisition		100	1,000
Cashless exercise of stock options in exchange for shares of the Company’s Class B common stock			14,930
Stock issued for matching contributions to the 401(k) Plan				$ 1,042

[1] Stock-based compensation included in selling, general and administrative expenses