Intangible Assets, Net (Narrative) (Details) - USD ($) $ in Thousands			12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Sep. 30, 2020
Intangible Assets, Net [Line Items]
Weighted average cost of capital assumption		9.70%
Assumed annual compound growth rate after five years	3.95%	3.95%
Assumed annual compound growth rate period		5 years
Disposal Groups [Member]
Intangible Assets, Net [Line Items]
Impairment of intangible assets, Indefinite-lived			$ 200
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]			Impairment of assets sold