Schedule of Other Operating Gain, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Restructuring Cost and Reserve [Line Items]
Corporate—Straight Path Communications Inc. class action legal fees	$ (212)	$ (2,512)
Corporate—Straight Path Communications Inc. class action insurance claims	684	1,725
Corporate—other	12
Fintech—government grants		33
Traditional Communications—cable telephony customer indemnification claim		(11)
Total	484	800
Fintech [Member]
Restructuring Cost and Reserve [Line Items]
Fintech—write-off of contingent consideration liability		$ 1,565