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v3.24.3

INVESTMENT IN AVAILABLE FOR SALE MARKETABLE SECURITIES (Details) - USD ($) | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023
INVESTMENT IN AVAILABLE FOR SALE MARKETABLE SECURITIES |  |
Beginning balance | $ 382,144 | $ 0
Additions | 0 | 0
Recognized losses | (246,532) | 0
Ending balance | $ 135,612 | $ 0

X
- References No definition available. + Details
Name: | nixx_AvailableForSaleSecurityNoncurrent
Namespace Prefix: | nixx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | nixx_PaymentsToAcquireAvailableForSaleSecurity
Namespace Prefix: | nixx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | nixx_RecognizedLosses
Namespace Prefix: | nixx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration