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v3.25.1

Contract assets | 12 Months Ended
--- | ---
Dec. 31, 2024
Contract Assets |
Contract assets | 4 Contract assets Schedule of contract assets
|  | 2023 |  |  | 2024 |  |  | 2024 |
|  | As of December 31, |
|  | 2023 |  |  | 2024 |  |  | 2024 |
|  | S$ |  |  | S$ |  |  | US$ |
Balance - beginning of the year |  |  | 2,488 |  |  |  | - |  |  |  | - |
Increase resulting from satisfaction of performance obligations |  |  | - |  |  |  | - |  |  |  | - |
Less: progress billings |  |  | (2,488 | ) |  |  | - |  |  |  | - |
Balance - end of the year |  |  | - |  |  |  | - |  |  |  | - |

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- Definition Contract Assets [Text Block] + References No definition available. + Details
Name: | CUPR_ContractAssetsTextBlock
Namespace Prefix: | CUPR_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | CUPR_DisclosureContractAssetsAbstract
Namespace Prefix: | CUPR_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration