Schedule of Lease-related Assets and Liabilities (Details) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Finance And Operating Lease Obligations
Future minimum lease payments including accrued interest	$ 0.2	$ 0.2

Future minimum lease payments including accrued interest

No definition available.

Name:	RNVA_FutureMinimumLeasePaymentsIncludingAccruedInterest
Namespace Prefix:	RNVA_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant