XML 33 R17.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Due to Related Parties | 12 Months Ended
--- | ---
Dec. 31, 2017
Due to Related Parties [Abstract] |
Due to Related Parties | NOTE 9 - DUE TO RELATED PARTIES
|  | As of |  |  | As of |
|  | December 31, 2017 |  |  | December 31, 2016 |
Due to noncontrolling interests |  | $ | 1,617,241 |  |  | $ | 1,441,548 |
Due to shareholders |  |  | 3,993 |  |  |  | 4,880 |
Due to directors |  |  | 85,212 |  |  |  | 46,109 |
Due to related companies |  |  | 107,484 |  |  |  | 16,955 |
Total |  | $ | 1,813,930 |  |  | $ | 1,509,492 |
At December 31, 2017 and 2016, $1,441,548, was due to the noncontrolling interest in Forward Win International Limited, and is unsecured, bears no interest, is payable upon demand, and related to the initial acquisition of the Company’s real estate held for sale property. At December 31, 2017, $175,693 was due to the noncontrolling interest in BSHL, and is unsecured, bears no interest, and is payable upon demand. Due to shareholders, directors, and related companies represents expenses paid by the related companies or shareholder or director to third parties on behalf of the Company, are non-interest bearing, and are due on demand.

X
- Definition Amounts due to related parties [Text Block] + References No definition available. + Details
Name: | GRNQ_AmountsDueToRelatedPartiesTextBlock
Namespace Prefix: | GRNQ_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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