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SCHEDULE OF ALLOWANCE FOR CREDIT LOSS OF PROMISSORY NOTES (Details) | 12 Months Ended
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Mar. 31, 2025 HKD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2024 HKD ($) | Mar. 31, 2023 HKD ($)
Promissory Notes Receivables |  |  |  |
Balance at April 1, |  |  |  |
Allowance for expected credit losses | 47,123 | 6,041 |  |
Exchange translation difference |  |  |  |
Balance at April 1, | $ 47,123 | $ 6,041 |  |

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- Definition Allowance for doubtful promissory notes receivable. + References No definition available. + Details
Name: | ROMA_AllowanceForDoubtfulPromissoryNotesReceivable
Namespace Prefix: | ROMA_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Allowance for promissory notes receivable exchange difference. + References No definition available. + Details
Name: | ROMA_AllowanceForPromissoryNotesReceivableExchangeDifference
Namespace Prefix: | ROMA_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Allowance for promissory notes receivable period increase decrease. + References No definition available. + Details
Name: | ROMA_AllowanceForPromissoryNotesReceivablePeriodIncreaseDecrease
Namespace Prefix: | ROMA_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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