Commitments and contingencies (Details)	12 Months Ended
Oct. 31, 2023 USD ($)
Commitments and contingencies (Details) [Line Items]
Commercial space leases, net book value	$ 35,500,000
Minimum [Member]
Commitments and contingencies (Details) [Line Items]
Lease terms for residential tenants, periods	1 year
Maximum [Member]
Commitments and contingencies (Details) [Line Items]
Lease terms for residential tenants, periods	2 years
Westwood Plaza Shopping Center [Member]
Commitments and contingencies (Details) [Line Items]
Flood insurance, amount per incident	$ 500,000

Amount, after accumulated depreciation, of lessor's underlying asset for which right to use has been conveyed to lessee under operating lease.

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 840
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481501/840-20-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479773/842-30-50-13

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482099/360-10-50-1

Name:	us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant