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Note 9 - Receivables - Other, net (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Accounts Receivables, Other | $ 732 | $ 1,846
Performance Bonuses [Member] |  |
Accounts Receivables, Other | 588 | 1,602
Customers [Member] |  |
Accounts Receivables, Other | 115 | 192
Other [Member] |  |
Accounts Receivables, Other | $ 29 | $ 52

X
- Definition Represents accounts receivables classified as other. + References No definition available. + Details
Name: | nxpl_AccountsReceivablesOther
Namespace Prefix: | nxpl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=nxpl_PerformanceBonusesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=nxpl_CustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=nxpl_OtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |