Related Party Transactions (Schedule of Rent Payments Expenses) (Details) - Chairman of the Board of Directors [Member] - USD ($)	3 Months Ended
Oct. 31, 2021	Oct. 31, 2020
Related Party Transaction [Line Items]
Rent Payments	$ 246,813	$ 246,813
Rent Expense	466,968	466,968
Jamaica Avenue at 169th Street [Member]
Related Party Transaction [Line Items]
Rent Payments	156,249	156,249
Rent Expense	379,359	379,359
504-506 Fulton Street [Member]
Related Party Transaction [Line Items]
Rent Payments	90,564	90,564
Rent Expense	$ 87,609	$ 87,609

Amount of operating lease income from lease payments paid and payable to lessor. Excludes variable lease payments not included in measurement of lease receivable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 6A
-URI http://asc.fasb.org/extlink&oid=124502072&loc=SL77927221-108306

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124258985&loc=SL77919372-209981

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Cash payments to lessor's for use of assets under operating leases.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585

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+ References

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