Nature of Operations and Summary of Significant Accounting Policies (Details)	6 Months Ended
Dec. 31, 2025 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