The aggregate amount to be deposit in trust account before closing of business combination.

No definition available.

Name:	nfys_AggregateAmountToBeDepositedInTrustAccountBeforeClosingOfBusinessCombination
Namespace Prefix:	nfys_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount to be deposit in trust account in each month before closing of business combination.

+ References

No definition available.

+ Details

Name:	nfys_AmountToBeDepositInTrustAccountOnMonthlyBeforeClosingOfBusinessCombination
Namespace Prefix:	nfys_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

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Namespace Prefix:	nfys_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Price of single share used to multiply with outstanding shares at closing of business combination to deposit amount in trust account.

+ References

No definition available.

+ Details

Name:	nfys_SharePriceUsedToCalculateDepositAmountInTrustAccountOnOutstandingShares
Namespace Prefix:	nfys_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_NotesPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=nfys_PublicSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
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RELATED PARTIES, Extension Notes (Details) - USD ($)	Jun. 30, 2024	Jun. 05, 2024	Feb. 06, 2024	Dec. 31, 2023	Oct. 10, 2023
Promissory Note [Member] \| First Extension Note [Member]
Extension Notes [Abstract]
Outstanding	$ 400,000
Promissory Note [Member] \| Second Extension Note [Member]
Extension Notes [Abstract]
Outstanding	320,000
Promissory Note [Member] \| Third Extension Note [Member]
Extension Notes [Abstract]
Outstanding	50,000
Related Party [Member] \| Sponsor Extension Note [Member]
Extension Notes [Abstract]
Outstanding	$ 770,000			$ 300,000
Maximum [Member] \| Promissory Note [Member] \| First Extension Note [Member]
Extension Notes [Abstract]
Amount to be deposit in trust account on monthly					$ 100,000
Aggregate amount to be deposited in trust account					$ 400,000
Maximum [Member] \| Promissory Note [Member] \| Second Extension Note [Member]
Extension Notes [Abstract]
Amount to be deposit in trust account on monthly			$ 80,000
Aggregate amount to be deposited in trust account			$ 320,000
Maximum [Member] \| Promissory Note [Member] \| Second Extension Note [Member] \| Public Shares [Member]
Extension Notes [Abstract]
Share price used to calculate deposit amount in trust account (in dollars per share)			$ 0.02
Maximum [Member] \| Promissory Note [Member] \| Third Extension Note [Member]
Extension Notes [Abstract]
Amount to be deposit in trust account on monthly		$ 50,000
Aggregate amount to be deposited in trust account		$ 300,000
Maximum [Member] \| Promissory Note [Member] \| Third Extension Note [Member] \| Public Shares [Member]
Extension Notes [Abstract]
Share price used to calculate deposit amount in trust account (in dollars per share)		$ 0.02
Class A Ordinary Shares [Member] \| Maximum [Member] \| Promissory Note [Member] \| First Extension Note [Member]
Extension Notes [Abstract]
Share price used to calculate deposit amount in trust account (in dollars per share)					$ 0.025