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Schedule of supplemental cash flow information related to leases (Details)	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2024 SGD ($)	Dec. 31, 2023 SGD ($)	Dec. 31, 2022 SGD ($)
Leases
Cash flows from operating leases	$ 32,482	$ 44,185	$ 46,402	$ 32,043
Cash flows from finance lease				$ 6,376

X

- References

No definition available.

+ Details

Name:	CUPR_DisclosureLeasesAbstract
Namespace Prefix:	CUPR_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Finance lease payments.

+ References

No definition available.

+ Details

Name:	CUPR_FinanceLeasePayments
Namespace Prefix:	CUPR_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

+ Details

Name:	us-gaap_OperatingLeasePayments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration