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v3.25.1

Segment Information - Schedule of Long-Lived Assets Property and Equipment and Right-Of-Use Assets by Geographic Area (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Schedule of Long-Lived Assets Property and Equipment and Right-Of-Use Assets by Geographic Area [Line Items] |  |
Total | $ 696 | $ 110
Sweden [Member] |  |
Schedule of Long-Lived Assets Property and Equipment and Right-Of-Use Assets by Geographic Area [Line Items] |  |
Total | 696 | 109
Asia [Member] |  |
Schedule of Long-Lived Assets Property and Equipment and Right-Of-Use Assets by Geographic Area [Line Items] |  |
Total |  | $ 1

X
- Definition The amount of property and equipment, net including right-of-use assets. + References No definition available. + Details
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Namespace Prefix: | neon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_SE
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AsiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |