Operating Leases (Schedule of Revenues by Lease and Non-Lease Components) (Details) - USD ($)	3 Months Ended
Oct. 31, 2019	Oct. 31, 2018
Leases [Abstract]
Base rent - fixed	$ 4,536,099	$ 4,698,885
Reimbursements of Common Area Costs	149,660	164,588
Non-lease components (real estate taxes)	350,156	297,699
Rental income	$ 5,035,915	$ 5,161,172

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, 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 842
-SubTopic 30
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919372-209981

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=77888421&loc=SL77919311-209978

Reference 3: 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=118952077&loc=SL77927221-108306

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Balance Type:	credit
Period Type:	duration