XML 62 R51.htm IDEA: XBRL DOCUMENT
v3.26.1

SCHEDULE OF DUE FROM RELATED PARTIES (Details) - USD ($) | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Due from related parties |  |
Due from related parties | $ 883,795 | $ 995,640
Related Party B [Member] |  |
Due from related parties |  |
Due from related parties | 177,875 | 178,909
Related Party D [Member] |  |
Due from related parties |  |
Due from related parties | 704,530 | 815,342
Related Party G [Member] |  |
Due from related parties |  |
Due from related parties | 1,390 | 1,389
Related Party [Member] |  |
Due from related parties |  |
Due from related parties | $ 883,795 | $ 995,640

X
- Definition Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483467/210-10-45-1 + Details
Name: | us-gaap_OtherReceivablesNetCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=GRNQ_RelatedPartyBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=GRNQ_RelatedPartyDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=GRNQ_RelatedPartyGMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |