n/a

No definition available.

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- Definition

The amount of chargebacks and cash discounts accrued 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 amount of gross to net accrual adjustments incurred during the reporting period.

+ References

No definition available.

+ Details

Name:	nbrv_GrossToNetAccrualAdjustments
Namespace Prefix:	nbrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of gross to net adjustments accrued during the reporting period.

+ References

No definition available.

+ Details

Name:	nbrv_GrossToNetAdjustments
Namespace Prefix:	nbrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- References

No definition available.

+ Details

Name:	nbrv_GrossToNetAdjustmentsAbstract
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Data Type:	xbrli:stringItemType
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- Definition

The amount of Medicaid and Medicare rebates accrued 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 amount of other returns, rebates, discounts and adjustments accrued during the reporting period.

+ References

No definition available.

+ Details

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Namespace Prefix:	nbrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of inventory held with specialty distributors.

+ References

No definition available.

+ Details

Name:	nbrv_PercentageOfInventoryHeld
Namespace Prefix:	nbrv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of return reserve adjustments incurred during the reporting period.

+ References

No definition available.

+ Details

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

- Definition

The amount of revenue from contract with customers before return reserves and after gross to net adjustments during the reporting period.

+ References

No definition available.

+ Details

Name:	nbrv_RevenueFromContractWithCustomerExcludingAssessedTaxBeforeReturnsAndAdjustment
Namespace Prefix:	nbrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Gross revenue from contract with customers excluding assessed tax.

+ References

No definition available.

+ Details

Name:	nbrv_RevenueFromContractWithCustomerExcludingAssessedTaxGross
Namespace Prefix:	nbrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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

Name:	us-gaap_DisaggregationOfRevenueLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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Namespace Prefix:
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Revenue - Summary of Gross-To-Net ("GTN") Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Product revenue, gross	$ 100		$ 400
Adjustments To prior period accruals
Product revenue, net	487	$ 525	1,276	$ 2,228
Collaboration revenue - Upfront payment
Disaggregation of Revenue [Line Items]
Product revenue, gross	149		398
GTN accruals
Chargebacks and cash discounts	5		13
Medicaid and Medicare rebates	18		46
Other returns, rebates, discounts and adjustments	35		92
Total GTN accruals	58		151
Product revenue	91		247
Adjustments To prior period accruals
Returns reserve	(349)		(349)
GTN accrual adjustments	210		210
Product revenue, net	$ (48)		$ 108
XENLETA
Adjustments To prior period accruals
Percentage of inventory held			50.00%