The amount of increase decrease deferred legal fees.

No definition available.

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Namespace Prefix:	kpet_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Underwriting discount.

+ References

No definition available.

+ Details

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- Definition

Number shares units issued.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
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- 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

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Data Type:	xbrli:stringItemType
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- Definition

The cash inflow associated with the amount received from entity's first offering of stock to the public.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

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

- Definition

The cash inflow from the additional capital contribution to the entity.

+ References

+ Details

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

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:perShareItemType
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- Details

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Commitments and Contingencies (Details) - USD ($)				6 Months Ended	12 Months Ended
Commitments and Contingencies (Details) - USD ($)	Jun. 30, 2026	Apr. 20, 2026	Apr. 01, 2026	Jun. 30, 2026	Dec. 31, 2025
Commitments and Contingencies [Line Items]
Gross proceeds		$ 30,000,000
Underwriting discount (in Dollars per share)				$ 0.0125
Deferred legal fees				$ (153,291)
Business Combination [Member]
Commitments and Contingencies [Line Items]
Deferred legal fees				153,291	$ (0)
Initial Public Offering [Member]
Commitments and Contingencies [Line Items]
Aggregate offering price				$ 250,000
Number of units issued (in Shares)	3,000,000	3,000,000	20,000,000
Sale of stock per share (in Dollars per share)	$ 0.55	$ 10	$ 10	$ 0.55
Initial Public Offering [Member] \| Business Combination [Member]
Commitments and Contingencies [Line Items]
Aggregate offering price				$ 12,650,000
Class A Ordinary Shares [Member]
Commitments and Contingencies [Line Items]
Sale of stock per share (in Dollars per share)	$ 18			$ 18
Class A Ordinary Shares [Member] \| Initial Public Offering [Member]
Commitments and Contingencies [Line Items]
Aggregate offering price				$ 25,000,000