Summary of Significant Accounting Policies (Details) - Schedule of allowance for uncollectible receivables - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021	Jul. 31, 2021
Allowance for Uncollectible Accounts Receivable [Member]
Summary of Significant Accounting Policies (Details) - Schedule of allowance for uncollectible receivables [Line Items]
Beginning balance			$ 318,000	$ 82,000	$ 82,000
Charge-offs
Reserve adjustments			81,000		236,000
Ending balance	$ 399,000		399,000		318,000
Bad Debt Expense [Member]
Summary of Significant Accounting Policies (Details) - Schedule of allowance for uncollectible receivables [Line Items]
Beginning balance
Charge-offs			133,350
Reserve adjustments	(5,000)	135,000	81,000	209,000
Bad debt expense	$ (5,000)	$ 135,000	$ 214,350	$ 209,000