Finance and Operating Lease Obligations (Details Narrative) $ in Millions	Sep. 30, 2021 USD ($)
Finance And Operating Lease Obligations
Future minimum lease payments and accrued interest	$ 0.2

Future minimum lease payments and accrued interest

No definition available.

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