Accrued Expenses - Schedule of Accrued Expenses (Parenthetical) (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Accrued Expenses
Payables And Accruals [Line Items]
Escheatment liabilities	$ 0.3	$ 0.3

Disposal group including discontinued operation escheatment liabilities.

No definition available.

Name:	rhep_DisposalGroupIncludingDiscontinuedOperationEscheatmentLiabilities
Namespace Prefix:	rhep_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant