SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Segment reporting (Details)		12 Months Ended
May 14, 2024	Oct. 31, 2023 segment
Segment Reporting
Reportable business segments		1
Class A ordinary shares \| Subsequent events
Reverse Stock Split
Reverse stock split ratio	0.2

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-18

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration