Name:	crcuf_ManagementOfFinancialRiskLineItems
Namespace Prefix:	crcuf_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Represent the assumption of change in market price percentage.

No definition available.

Name:	crcuf_MarketPriceChangePercentageAssumption
Namespace Prefix:	crcuf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represent the sensitivity analysis for market risk affecting profit or loss.

No definition available.

Name:	crcuf_SensitivityAnalysisForMarketRiskAffectingProfitOrLoss
Namespace Prefix:	crcuf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represent the amount of working capital (deficit).

No definition available.

Name:	crcuf_WorkingCapitalDeficit
Namespace Prefix:	crcuf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of reclassification adjustments related to exchange differences when the financial statements of foreign operations are translated, net of tax. Reclassification adjustments are amounts reclassified to profit (loss) in the current period that were recognised in other comprehensive income in the current or previous periods. [Refer: Other comprehensive income]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 21
-IssueDate 2025-01-01
-Paragraph 48
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=21&code=ifrs-tx-2025-en-r&anchor=para_48&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 92
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_92&doctype=Standard
-URIDate 2025-03-27