Broadband Grants (Details)	3 Months Ended
Mar. 31, 2019 USD ($)
January 2017 Grant [Member]
Broadband Grants (Details) [Line Items]
Grants, Percentage	45.00%
Grants Receivable	$ 850,486
Project Cost	$ 1,889,968
Matching Fund Percentage Provided by Grantee	55.00%
Proceeds from Grantors	$ 765,465
November 2017 Grant [Member]
Broadband Grants (Details) [Line Items]
Grants, Percentage	42.60%
Grants Receivable	$ 736,598
Project Cost	$ 1,727,998
Matching Fund Percentage Provided by Grantee	57.40%

No definition available.

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- Definition

Percentage of the total grant amount utilized during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	nuvr_
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- Definition

The percentage of matching fund to be provided by the grantee.

+ References

No definition available.

+ Details

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Namespace Prefix:	nuvr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of project cost.

+ References

No definition available.

+ Details

Name:	nuvr_ProjectCost
Namespace Prefix:	nuvr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying amount as of the balance sheet date of amounts due under the terms of governmental, corporate, or foundation grants.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Cash received from grantors during the current period related to operating activities. This element represents receipts from a guarantor for the amount of guarantee provided.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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- Details

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