Schedule of Other Operating (Expense) Gain, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Restructuring Cost and Reserve [Line Items]
Corporate—Straight Path Communications Inc. class action legal fees	$ (3,157)	$ (973)	$ (5,921)	$ (5,082)
Corporate—Straight Path Communications Inc. class action insurance claims		337	2,869	3,325
Corporate—other			12
Fintech—write-off of intangible asset	(74)		(74)
Fintech—write-off of contingent consideration liability			(100)	(1,600)
Fintech— government grants				382
net2phone—write-off of contingent consideration liability			73
Traditional Communications— cable telephony customer indemnification claim		(3,912)		(3,925)
Traditional Communications— contingent consideration liability		(216)		(216)
Traditional Communications—other				3
Total other operating expense, net	(3,231)	(4,764)	(3,041)	(3,948)
Fintech [Member]
Restructuring Cost and Reserve [Line Items]
Fintech—write-off of contingent consideration liability				$ 1,565