STOCK BASED COMPENSATION (Details) - Number of Options awarded - Restricted Stock Units (RSUs) [Member] - $ / shares	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
STOCK BASED COMPENSATION (Details) - Number of Options awarded [Line Items]
Balance	121,743
Balance	276,037	121,743
Share-Based Payment Arrangement, Tranche One [Member]
STOCK BASED COMPENSATION (Details) - Number of Options awarded [Line Items]
Options,Issued	51,431	40,577
Options,Issued Closing Stock Price (in Dollars per share)	$ 14.7	$ 21.2
Options,Issued Vesting Date	Mar. 31, 2024	Apr. 11, 2023
Share-Based Payment Arrangement, Tranche Two [Member]
STOCK BASED COMPENSATION (Details) - Number of Options awarded [Line Items]
Options,Issued	51,431	40,583
Options,Issued Closing Stock Price (in Dollars per share)	$ 14.7	$ 21.2
Options,Issued Vesting Date	Mar. 31, 2025	Apr. 11, 2024
Share-Based Payment Arrangement, Tranche Three [Member]
STOCK BASED COMPENSATION (Details) - Number of Options awarded [Line Items]
Options,Issued	51,432	40,583
Options,Issued Closing Stock Price (in Dollars per share)	$ 14.7	$ 21.2
Options,Issued Vesting Date	Mar. 31, 2026	Apr. 11, 2025

No definition available.

Name:	nuvr_STOCKBASEDCOMPENSATIONDetailsNumberofOptionsawardedLineItems
Namespace Prefix:	nuvr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date on which award under share-based payment arrangement will vest.

+ References

No definition available.

+ Details

Name:	nuvr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingDate
Namespace Prefix:	nuvr_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross number of share options (or share units) granted during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(01)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: