No definition available.

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- Definition

Amount of gain (loss) on lease assignment. The deferred rent was removed from the balance sheets.

+ References

No definition available.

+ Details

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Namespace Prefix:	nviv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total amount of the contingent obligation terminated under letters of credit during the reporting period.

+ References

No definition available.

+ Details

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

- Definition

The number of options the entity has to extend the lease.

+ References

No definition available.

+ Details

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- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
-Paragraph 1
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Period Type:	duration

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
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Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 55
-Paragraph 40
-Subparagraph (Note 3)
-URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697

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

- Definition

Amount of asset related to consideration paid in advance for rent that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section 05
-Paragraph 5
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-Subparagraph (g)(3)
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Balance Type:	debit
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- Definition

This element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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COMMITMENTS AND CONTINGENCIES, LEASES (Details) $ in Thousands				3 Months Ended	12 Months Ended
	May 03, 2018 USD ($) ft²	Oct. 31, 2017 USD ($) ft² item	Aug. 28, 2017 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Nov. 01, 2018 USD ($)	Jun. 19, 2017 USD ($)	Jun. 13, 2017 ft²	Mar. 31, 2016 ft²
Commitments
Deferred rent removed and gain on lease assignment					$ 603
Loss on impairment of fixed assets	$ 48		$ 41		48	$ 41
Prepaid rent					17	0
Deferred rent liability					0	397
Cambridge Lease
Commitments
Lease space (in square feet) \| ft²		26,342
Term of commercial lease		6 years 3 months					5 years
Number of options to extend lease \| item		1
Term of lease extension option		5 years
Standby letter of credit		$ 311
Letter of credit terminated amount	$ 311
Deferred rent removed and gain on lease assignment				$ 603
Loss on impairment of fixed assets					48
Sublease
Commitments
Lease space (in square feet) \| ft²										5,233
Sublease income recorded as offset to rent expense						$ 26
Moderna Sublease
Commitments
Lease space (in square feet) \| ft²									5,233
Sublease income recorded as offset to rent expense					$ 112
Tenant security deposit								$ 55
Third Party Lease
Commitments
Lease space (in square feet) \| ft²	5,104
Standby letter of credit	$ 40						$ 60
Tenant security deposit				$ 55