NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	3 Months Ended
Sep. 30, 2023 subsidiary
NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Number of wholly owned subsidiaries	2

Represents the number of wholly owned subsidiaries.

No definition available.

Name:	rzlt_NumberOfWhollyOwnedSubsidiaries
Namespace Prefix:	rzlt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration