Estimated fair value of representative shares.

No definition available.

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Namespace Prefix:	colau_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Gross proceeds of IPO percentage.

+ References

No definition available.

+ Details

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Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the underwriters option period from the date of Initial Public Offering.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of units issued during period share new issues.

+ References

No definition available.

+ Details

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Namespace Prefix:	colau_
Data Type:	xbrli:sharesItemType
Balance Type:	na
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

No definition available.

+ Details

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Balance Type:	na
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- Definition

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

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount of cash inflow from exercise of option under share-based payment arrangement.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of new stock issued during the period.

+ References

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Commitments and Contingencies (Details) - USD ($)			11 Months Ended	12 Months Ended
Commitments and Contingencies (Details) - USD ($)	Jan. 24, 2025	Jan. 22, 2025	Dec. 31, 2024	Dec. 31, 2025
Commitments and Contingencies [Line Items]
Gross proceeds (in Dollars)				$ 60,000,000
Fair value of representative shares (in Dollars)				$ 361,000
IPO [Member]
Commitments and Contingencies [Line Items]
Additional units	6,000,000
Gross proceeds of IPO percentage				3.50%
Gross proceeds (in Dollars)	$ 1,538,521
IPO [Member] \| Underwriting Agreement [Member]
Commitments and Contingencies [Line Items]
Underwriters option period		45 days
Gross proceeds of IPO percentage				1.50%
Gross proceeds (in Dollars)				$ 900,000
Fair value of representative shares (in Dollars)				$ 361,000
IPO [Member] \| Representative Shares [Member] \| Underwriting Agreement [Member]
Commitments and Contingencies [Line Items]
Shares issued				210,000
Over-Allotment Option [Member]
Commitments and Contingencies [Line Items]
Additional units	900,000
Over-Allotment Option [Member] \| Underwriting Agreement [Member]
Commitments and Contingencies [Line Items]
Additional units		900,000
Gross proceeds from over-allotment exercised (in Dollars)				$ 1,035,000
Ordinary Shares [Member]
Commitments and Contingencies [Line Items]
Shares issued				234,290
Ordinary Shares [Member] \| Underwriting Agreement [Member]
Commitments and Contingencies [Line Items]
Shares issued				210,000