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v3.26.1

Schedule of other income (Details) | 12 Months Ended
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Dec. 31, 2025 USD ($) | Dec. 31, 2025 SGD ($) | Dec. 31, 2024 SGD ($) | Dec. 31, 2023 SGD ($)
Other Income and Expenses [Abstract] |  |  |  |
Government grants | $ 107,341 | $ 138,073 | $ 163,846 | $ 36,086
Cash fund transfer rebates | 1,715 | 2,206 | 19 | 3,063
Interest income | 20,650 | 26,562 |  |
Usage of ISO13485 certified facilities | 52,565 | 67,614 | 10,000 |
Other operating income expense net | $ 182,271 | $ 234,455 | $ 173,865 | $ 39,149

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- Definition Cash fund transfer rebates. + References No definition available. + Details
Name: | CUPR_CashFundTransferRebates
Namespace Prefix: | CUPR_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Government Grants. + References No definition available. + Details
Name: | CUPR_GovernmentGrants
Namespace Prefix: | CUPR_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Usage of certified facilities. + References No definition available. + Details
Name: | CUPR_UsageOfCertifiedFacilities
Namespace Prefix: | CUPR_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of interest income and other income recognized during the period. Included in this element is interest derived from investments in debt securities, cash and cash equivalents, and other investments which reflect the time value of money or transactions in which the payments are for the use or forbearance of money and other income from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business). + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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- Definition The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. + References No definition available. + Details
Name: | us-gaap_OtherOperatingIncomeExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration