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SCHEDULE OF SUPPLEMENTAL BALANCE SHEET INFORMATION RELATED TO LEASES (Details) (Parenthetical) - USD ($) | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Leases |  |
Operating lease ROU assets, cost | $ 447,556 | $ 351,829
Operating lease, right of use asset, accumulated amortization | 355,980 | 331,900
Finance lease ROU assets, cost | 28,898 | 28,898
Finance lease ROU assets, accumulated amortization | $ 9,960 | $ 8,626

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

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- Definition Finance lease right of use asset accumulated amortization expense. + References No definition available. + Details
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Namespace Prefix: | GRNQ_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Finance lease right of use asset cost. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Operating lease right of use asset accumulated amortization expense. + References No definition available. + Details
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Namespace Prefix: | GRNQ_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Operating lease right of use asset cost. + References No definition available. + Details
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Namespace Prefix: | GRNQ_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant