Call option value.

No definition available.

Name:	clgl_CallOptionValue
Namespace Prefix:	clgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Consecutively days.

+ References

No definition available.

+ Details

Name:	clgl_ConsecutivelyDays
Namespace Prefix:	clgl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Conversion price.

+ References

No definition available.

+ Details

Name:	clgl_ConversionPrice
Namespace Prefix:	clgl_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of cinverted shares.

+ References

No definition available.

+ Details

Name:	clgl_ConvertedShares
Namespace Prefix:	clgl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Convertible note.

+ References

No definition available.

+ Details

Name:	clgl_ConvertibleNote
Namespace Prefix:	clgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Issued share capital of divided.

+ References

No definition available.

+ Details

Name:	clgl_IssuedShareCapitalOfDivided
Namespace Prefix:	clgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Money market loan.

+ References

No definition available.

+ Details

Name:	clgl_MoneyMarketLoan
Namespace Prefix:	clgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of money market loan more tranches.

+ References

No definition available.

+ Details

Name:	clgl_MoneyMarketLoanMoreTranches
Namespace Prefix:	clgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of enlarged ordinary share capital.

+ References

No definition available.

+ Details

Name:	clgl_PercentageOfEnlargedOrdinaryShareCapital
Namespace Prefix:	clgl_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of grantor discount rate.

+ References

No definition available.

+ Details

Name:	clgl_PercentageOfGrantorDiscountRate
Namespace Prefix:	clgl_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of total number of issued ordinary shares or total assets.

+ References

No definition available.

+ Details

Name:	clgl_PercentageOfTotalNumberOfIssuedOrdinarySharesOrTotalAssets
Namespace Prefix:	clgl_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of volume weighted average price.

+ References

No definition available.

+ Details

Name:	clgl_PercentageOfVolumeWeightedAveragePrice
Namespace Prefix:	clgl_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Principal convertible note.

+ References

No definition available.

+ Details

Name:	clgl_PrincipalConvertibleNote
Namespace Prefix:	clgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_Borrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_7&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_BorrowingsInterestRate
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The maturity of borrowings. [Refer: Borrowings]

+ References

+ Details

Name:	ifrs-full_BorrowingsMaturity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The increase (decrease) in the number of ordinary shares issued. [Refer: Ordinary shares [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of mortgage loans made by the entity.

+ References

+ Details

Name:	ifrs-full_MortgageLoans
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of loans received from banks that have been secured by collateral. [Refer: Loans received]

+ References

+ Details

Name:	ifrs-full_SecuredBankLoansReceived
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=clgl_SoftbankRoboticsSingaporePteLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=clgl_InternationalGroupPteLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=clgl_Loan1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=clgl_BankBorrowingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=clgl_Loan2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=clgl_Loan3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=clgl_Loan4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=clgl_Loan5Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=srt_DirectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=clgl_Loan6Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=clgl_Loan7Member
Namespace Prefix:
Data Type:	na
Balance Type:
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Debt (Details)					12 Months Ended
Debt (Details)	Sep. 12, 2025 shares	Jun. 25, 2024 SGD ($) shares	Jun. 14, 2024 SGD ($)	Jun. 10, 2024 USD ($) $ / shares	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Sep. 01, 2024	Jul. 01, 2024	Dec. 01, 2021	Dec. 31, 2020 USD ($)	Feb. 01, 2020
Debt [Line Items]
Loans					$ 4,810,433	$ 6,028,791
Money market loan					372,150
Principal convertible note					1,000,000
Consecutively days				10 days
Conversion price (in Dollars per share) \| $ / shares				$ 0.00001
Percentage of volume weighted average price				85.00%
Convertible Shares (in Shares) \| shares	259,082
Loan term			5
Secured loan (in Dollars)			$ 500,000
Percentage of grantor discount rate		20.00%
Percentage of enlarged ordinary share capital		20.00%
Call option value (in Dollars)		$ 500,000
Issued share capital of divided (in Dollars)		$ 4,070,000
Ordinary shares issued (in Shares) \| shares		1,542,748
Percentage of total number of issued ordinary shares or total assets		50.00%
Softbank Robotics Singapore Pte Ltd [Member]
Debt [Line Items]
Convertible note				$ 1,000,000
International Group Pte Ltd. [Member]
Debt [Line Items]
Bears interest rate		3.50%
Loan 1 [Member]
Debt [Line Items]
Loans					2,601,160	2,514,154
Loan 1 [Member] \| Top of range [Member]
Debt [Line Items]
Bears interest rate											1.30%
Loan 1 [Member] \| Bottom of range [Member]
Debt [Line Items]
Bears interest rate											6.00%
Loan 1 [Member] \| Bank Borrowings [Member]
Debt [Line Items]
Loans					1,695,437	1,689,025
Loan 2 [Member]
Debt [Line Items]
Loans						192,686
Bears interest rate									2.50%	2.50%
Loan 3 [Member]
Debt [Line Items]
Loans						177,969				$ 25,401
Loan 4 [Member]
Debt [Line Items]
Loans					1,713,362	1,617,290
Legal mortgage					$ 2,902,770
Loan 4 [Member] \| Top of range [Member]
Debt [Line Items]
Bears interest rate					2.47%
Money market loan						6.4
Loan 4 [Member] \| Bottom of range [Member]
Debt [Line Items]
Bears interest rate					5.64%
Money market loan						4.9
Loan 5 [Member]
Debt [Line Items]
Loans					$ 1,028,849	1,064,773
Bears interest rate								3.90%
Loan 5 [Member] \| Director [Member]
Debt [Line Items]
Loans					$ 2,604,160
Loan 6 [Member]
Debt [Line Items]
Loans						940,077
Bears interest rate					3.00%
Loan 7 [Member]
Debt [Line Items]
Loans					$ 301,392	$ 346,971
Bears interest rate							3.89%