Finance and Operating Lease Obligations (Details Narrative) $ in Millions	Dec. 31, 2021 USD ($)
Finance And Operating Lease Obligations
[custom:FutureMinimumLeasePaymentsAndAccruedInterest-0]	$ 0.2

Future minimum lease payments and accrued interest.

No definition available.

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