The price per warrant of the conversion feature embedded in the debt instrument.

No definition available.

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Namespace Prefix:	netd_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of maximum borrowing capacity under promissory note of a related party.

+ References

No definition available.

+ Details

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Namespace Prefix:	netd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of maximum loans convertible into warrants.

+ References

No definition available.

+ Details

Name:	netd_MaximumLoansConvertibleIntoWarrants
Namespace Prefix:	netd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=netd_RelatedPartyLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_NotesPayableOtherPayablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=netd_SponsorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=netd_WorkingCapitalLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=netd_SponsorAndItsAffiliatesAndOfficersAndDirectorsMember
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Data Type:	na
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Period Type:

RELATED PARTY TRANSACTIONS - Related Party Loans (Details) - Related Party Loans - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024	Apr. 24, 2023
Note \| Sponsor
RELATED PARTY TRANSACTIONS
Maximum loan			$ 300,000
Amount borrowed	$ 217,553
Working Capital Loans \| Sponsor or an affiliate of the Sponsor, or officers and directors
RELATED PARTY TRANSACTIONS
Amount borrowed	$ 0	$ 0
Maximum amount of loan convertible into warrants			$ 1,500,000
Price per warrant			$ 1