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COMMITMENTS AND CONTINGENT LIABILITIES (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Operating Leased Assets [Line Items]
Contingent obligation to royalty	$ 492		$ 492
Vehicles [Member]
Operating Leased Assets [Line Items]
Rent and related expenses	4	$ 3	9	$ 5
Penalties for cancellation lease agreements			5
Office Equipment [Member]
Operating Leased Assets [Line Items]
Rent and related expenses	$ 7	$ 7	$ 13	$ 15
Minimum [Member]
Operating Leased Assets [Line Items]
Percentage of royalty on sales			3.00%
Maximum [Member]
Operating Leased Assets [Line Items]
Percentage of royalty on sales			3.50%

X

- Definition

The amount of contingent obligation to pay royalties.

+ References

No definition available.

+ Details

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Namespace Prefix:	nvbxu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The maximum amount of penalties charged as a result of cancellation of operating lease agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	nvbxu_
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Balance Type:	debit
Period Type:	duration

X

- Definition

Percentage of royalty payment of sales of the product.

+ References

No definition available.

+ Details

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

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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X

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

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- Details

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X

- Details

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- Details

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- Details

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