XML 41 R30.htm IDEA: XBRL DOCUMENT
v3.26.1

SCHEDULE OF FOREIGN CURRENCIES TRANSLATION (Details) | Mar. 31, 2026 | Mar. 31, 2025
--- | --- | ---
Period End Myr U S Dollar 1 Exchange Rate [Member] |  |
Trading Activity, Gains and Losses, Net [Line Items] |  |
Exchange rate | 4.05 | 4.44
Period Average Myr Us Dollar 1 Exchange Rate [Member] |  |
Trading Activity, Gains and Losses, Net [Line Items] |  |
Exchange rate | 3.96 | 4.45
Period End Rmb Us Dollar 1 Exchange Rate [Member] |  |
Trading Activity, Gains and Losses, Net [Line Items] |  |
Exchange rate | 6.90 | 7.25
Period Average Rmb Us Dollar 1 Exchange Rate [Member] |  |
Trading Activity, Gains and Losses, Net [Line Items] |  |
Exchange rate | 6.90 | 7.26
Period End Hk Dollar Us Dollar 1 Exchange Rate [Member] |  |
Trading Activity, Gains and Losses, Net [Line Items] |  |
Exchange rate | 7.84 | 7.78
Period Average H K U S 1 Exchange Rate [Member] |  |
Trading Activity, Gains and Losses, Net [Line Items] |  |
Exchange rate | 7.82 | 7.78

X
- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479424/830-30-S99-1 + Details
Name: | us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 184 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-184 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4F -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4F Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4F -Subparagraph (a)(5) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4F Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4F -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4F Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4F -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4F Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4F -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4F Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4F -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4F Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4F -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4F + Details
Name: | us-gaap_TradingActivityGainsAndLossesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=GRNQ_PeriodEndMyrUSDollar1ExchangeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=GRNQ_PeriodAverageMyrUsDollar1ExchangeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=GRNQ_PeriodEndRmbUsDollar1ExchangeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=GRNQ_PeriodAverageRmbUsDollar1ExchangeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=GRNQ_PeriodEndHkDollarUsDollar1ExchangeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=GRNQ_PeriodAverageHKUS1ExchangeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |