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Trade receivables and other current assets - Disclosure of Changes in Research Tax Credit Receivables (Details) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Current prepayments and current accrued income other than current contract assets [abstract] |  |
Research tax credit receivable at beginning of period | € 3,939 | € 4,091
Research tax credit receivable at end of period | 3,369 | 3,939
2022 Tax Year | Nanobiotix S.A. |  |
Current prepayments and current accrued income other than current contract assets [abstract] |  |
Refund of research tax credit |  | (3,884)
2022 Tax Year | Curadigm SAS |  |
Current prepayments and current accrued income other than current contract assets [abstract] |  |
Refund of research tax credit |  | (207)
2023 Tax Year | Nanobiotix S.A. |  |
Current prepayments and current accrued income other than current contract assets [abstract] |  |
Refund of research tax credit | (3,707) |
Research tax credit |  | 3,762
2023 Tax Year | Curadigm SAS |  |
Current prepayments and current accrued income other than current contract assets [abstract] |  |
Refund of research tax credit | (177) |
Research tax credit |  | € 177
2024 Tax Year | Nanobiotix S.A. |  |
Current prepayments and current accrued income other than current contract assets [abstract] |  |
Research tax credit | 2,954 |
2024 Tax Year | Curadigm SAS |  |
Current prepayments and current accrued income other than current contract assets [abstract] |  |
Research tax credit | € 360 |

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- Definition The amount of current receivables from taxes other than income tax. [Refer: Receivables from taxes other than income tax] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 78 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_b&doctype=Standard -URIDate 2024-03-27 + Details
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