XML 178 R115.htm IDEA: XBRL DOCUMENT v3.25.1

Share-based payments - Disclosure of Indirect Measurement of Fair Value of Goods or Services Received, Share Options Granted During Period (Details) € / shares in Units, € in Thousands											12 Months Ended
	Jun. 22, 2022 EUR (€) yr € / shares	Jun. 21, 2021 EUR (€) yr € / shares	Apr. 20, 2021 EUR (€) yr € / shares	Mar. 11, 2020 EUR (€) yr € / shares	Oct. 24, 2019 EUR (€) yr € / shares	Mar. 29, 2019 EUR (€) yr € / shares	Mar. 06, 2018 EUR (€) yr € / shares	Jan. 07, 2017 EUR (€) yr € / shares	Nov. 03, 2016 EUR (€) yr € / shares	Feb. 02, 2016 EUR (€) yr € / shares	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 EUR (€)	Dec. 31, 2022 EUR (€)
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expense for the year | €											€ 4,298	€ 3,222	€ 3,173
OSA
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expense for the year | €											2,047	941	548
OSA 2016 Ordinary
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares										€ 13.05
Exercise price (in euros per share) | € / shares										€ 13.05
Risk-free rate										0.32%
Yield										0.00%
Value of initial plan (in thousands of euros) | €										€ 117
Expense for the year | €											0	0	0
OSA 2016 Ordinary | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility										59.00%
OSA 2016 Ordinary | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility										62.00%
OSA 2016 Ordinary | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility										60.00%
OSA 2016 Ordinary | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr										5.5
OSA 2016 Ordinary | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr										6
OSA 2016 Ordinary | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr										6.5
OSA 2016-1 Performance
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares										€ 13.05
Exercise price (in euros per share) | € / shares										€ 13.05
Volatility										59.00%
Maturity (in years) | yr										5,000
Risk-free rate										0.19%
Yield										0.00%
Value of initial plan (in thousands of euros) | €										€ 69
Expense for the year | €											0	0	0
OSA 2016-2
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares									€ 14.26
Exercise price (in euros per share) | € / shares									€ 14.26
Risk-free rate									0.04%
Yield									0.00%
Value of initial plan (in thousands of euros) | €									€ 27
Expense for the year | €											0	0	0
OSA 2016-2 | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility									58.00%
OSA 2016-2 | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility									62.00%
OSA 2016-2 | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility									59.00%
OSA 2016-2 | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr									5.5
OSA 2016-2 | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr									6
OSA 2016-2 | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr									6.5
OSA 2017 Ordinary
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares								€ 15.93
Exercise price (in euros per share) | € / shares								€ 14.97
Risk-free rate								0.23%
Yield								0.00%
Value of initial plan (in thousands of euros) | €								€ 31
Expense for the year | €											0	0	0
OSA 2017 Ordinary | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility								58.00%
OSA 2017 Ordinary | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility								61.00%
OSA 2017 Ordinary | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility								59.00%
OSA 2017 Ordinary | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr								5.5
OSA 2017 Ordinary | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr								6
OSA 2017 Ordinary | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr								6.5
OSA 2017 Performance
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares								€ 15.93
Exercise price (in euros per share) | € / shares								€ 14.97
Volatility								59.00%
Maturity (in years) | yr								5,000
Risk-free rate								0.11%
Yield								0.00%
Value of initial plan (in thousands of euros) | €								€ 35
Expense for the year | €											0	0	0
OSA 2018
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares							€ 12.87
Exercise price (in euros per share) | € / shares							€ 12.87
Volatility							35.00%
Risk-free rate							0.00%
Yield							0.00%
Value of initial plan (in thousands of euros) | €							€ 252
Expense for the year | €											0	0	0
OSA 2018 | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr							5.5
OSA 2018 | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr							6
OSA 2018 | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr							6.5
OSA 2019-1
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares						€ 11.08
Exercise price (in euros per share) | € / shares						€ 11.08
Yield						0.00%
Value of initial plan (in thousands of euros) | €						€ 140
Expense for the year | €											0	0	(1)
OSA 2019-1 | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility						38.10%
Risk-free rate						0.103%
OSA 2019-1 | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility						37.40%
Risk-free rate						0.149%
OSA 2019-1 | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr						6
OSA 2019-1 | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr						6.5
OSA LLY 2019
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares					€ 6.41
Exercise price (in euros per share) | € / shares					€ 6.41
Volatility					37.00%
Maturity (in years) | yr					10,000
Risk-free rate					0.40%
Yield					0.00%
Value of initial plan (in thousands of euros) | €					€ 252
Expense for the year | €											0	0	0
OSA 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares				€ 6.25
Exercise price (in euros per share) | € / shares				€ 6.25
Volatility				38.00%
Maturity (in years) | yr				10,000
Risk-free rate				0.31%
Yield				0.00%
Value of initial plan (in thousands of euros) | €				€ 939
Expense for the year | €											0	13	101
OSA 2021-04 O
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares			€ 13.60
Exercise price (in euros per share) | € / shares			€ 13.74
Yield			0.00%
Value of initial plan (in thousands of euros) | €			€ 684
Expense for the year | €											5	34	(28)
OSA 2021-04 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility			38.90%
Risk-free rate			0.38%
OSA 2021-04 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility			37.80%
Risk-free rate			0.33%
OSA 2021-04 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility			38.30%
Risk-free rate			0.28%
OSA 2021-04 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr			5.5
OSA 2021-04 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr			6
OSA 2021-04 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr			6.5
OSA 2021-04 P
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares			€ 13.60
Exercise price (in euros per share) | € / shares			€ 13.74
Volatility			39.10%
Maturity (in years) | yr			10,000
Risk-free rate			0.03%
Yield			0.00%
Value of initial plan (in thousands of euros) | €			€ 1,816
Expense for the year | €											226	216	163
OSA 2021-06 O
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares		€ 12.20
Exercise price (in euros per share) | € / shares		€ 12.99
Yield		0.00%
Value of initial plan (in thousands of euros) | €		€ 246
Expense for the year | €											13	47	107
OSA 2021-06 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility		39.20%
Risk-free rate		0.35%
OSA 2021-06 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility		37.90%
Risk-free rate		0.30%
OSA 2021-06 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility		38.10%
Risk-free rate		0.26%
OSA 2021-06 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr		5.5
OSA 2021-06 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr		6
OSA 2021-06 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr		6.5
OSA 2021-06 P
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares		€ 12.20
Exercise price (in euros per share) | € / shares		€ 12.99
Volatility		39.10%
Maturity (in years) | yr		10,000
Risk-free rate		0.13%
Yield		0.00%
Value of initial plan (in thousands of euros) | €		€ 212
Expense for the year | €											24	24	24
OSA 2022-06 O
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares	€ 3.68
Exercise price (in euros per share) | € / shares	€ 4.16
Yield	0.00%
Value of initial plan (in thousands of euros) | €	€ 580
Expense for the year | €											86	267	178
OSA 2022-06 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility	42.06%
Risk-free rate	1.83%
OSA 2022-06 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility	41.21%
Risk-free rate	1.87%
OSA 2022-06 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility	40.65%
Risk-free rate	1.90%
OSA 2022-06 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr	5.5
OSA 2022-06 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr	6
OSA 2022-06 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr	6.5
OSA 2022-06 P
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares	€ 3.68
Exercise price (in euros per share) | € / shares	€ 4.16
Volatility	40.08%
Maturity (in years) | yr	10,000
Risk-free rate	2.28%
Yield	0.00%
Value of initial plan (in thousands of euros) | €	€ 80
Expense for the year | €											11	20	4
OSA 2023 - 01 O
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares	€ 6.75
Exercise price (in euros per share) | € / shares	€ 5.00
Yield	0.00%
Value of initial plan (in thousands of euros) | €	€ 1,255
Expense for the year | €											544	321	0
OSA 2023 - 01 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility	45.07%
Risk-free rate	2.85%
OSA 2023 - 01 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility	44.11%
Risk-free rate	2.83%
OSA 2023 - 01 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility	43.41%
Risk-free rate	2.82%
OSA 2023 - 01 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr	5.55
OSA 2023 - 01 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr	6
OSA 2023 - 01 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr	6.5
OSA 2024 - 01 O
Disclosure of terms and conditions of share-based payment arrangement [line items]
Share price (in euros) | € / shares	€ 5.19
Exercise price (in euros per share) | € / shares	€ 5.81
Yield	0.00%
Value of initial plan (in thousands of euros) | €	€ 3,107
Expense for the year | €											€ 1,138	€ 0	€ 0
OSA 2024 - 01 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility	53.30%
Risk-free rate	3.00%
OSA 2024 - 01 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility	51.90%
Risk-free rate	3.02%
OSA 2024 - 01 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Volatility	50.70%
Risk-free rate	3.02%
OSA 2024 - 01 O | Tranche one
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr	5.4
OSA 2024 - 01 O | Tranche two
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr	5.9
OSA 2024 - 01 O | Tranche three
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maturity (in years) | yr	6.4

X

- Definition

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The option life of share options granted.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DescriptionOfOptionLifeShareOptionsGranted
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The exercise price of share options granted.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ExercisePriceShareOptionsGranted2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of an expected dividend used to calculate the fair value of share options granted.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of expense arising from equity-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 51
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_51_a&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Share Based Compensation Arrangement By Share Based Payment Award, Value Of Initial Plan

+ References

No definition available.

+ Details

Name:	nbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardValueOfInitialPlan
Namespace Prefix:	nbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA20161OrdinaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nbx_TranchesAxis=nbx_TrancheOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nbx_TranchesAxis=nbx_TrancheTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nbx_TranchesAxis=nbx_TrancheThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nbx_Vesting1Axis=nbx_TrancheOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nbx_Vesting1Axis=nbx_TrancheTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nbx_Vesting1Axis=nbx_TrancheThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA20161PerformanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA20162Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA2017OrdinaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA2017PerformanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA2018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA20191Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSALLY2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA202104OrdinaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA202104PerformanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA202106OrdinaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA202106PerformanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA202206OMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA202206PMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA202301OMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=nbx_OSA202401OMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: