Revenue Recognition (Details) - Accounts Receivable	6 Months Ended
Jun. 30, 2022
Minimum [Member]
Revenue Recognition (Details) - Accounts Receivable [Line Items]
Payment Term	30 days
Maximum [Member]
Revenue Recognition (Details) - Accounts Receivable [Line Items]
Payment Term	60 days

Payment terms on invoiced amount in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	nuvr_PaymentTerm
Namespace Prefix:	nuvr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration