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v3.25.1

Note 3 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Recurring [Member] $ in Thousands | Mar. 31, 2025 USD ($)
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Restricted cash held as a certificate of deposit | $ 477
Fair Value, Inputs, Level 1 [Member] |
Restricted cash held as a certificate of deposit | 477
Fair Value, Inputs, Level 2 [Member] |
Restricted cash held as a certificate of deposit | 0
Fair Value, Inputs, Level 3 [Member] |
Restricted cash held as a certificate of deposit | $ 0

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- Definition Fair value portion of restricted cash held as a certificate of deposit. + References No definition available. + Details
Name: | nby_RestrictedCashHeldAsACertificateOfDepositFairValueDisclosure
Namespace Prefix: | nby_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |