XML 48 R37.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Amounts Due to Related Parties (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2017
Due to Related Parties [Abstract] |
Schedule of Amounts Due to Related Parties |
|  | As of |  |  | As of |
|  | June 30, 2017 |  |  | December 31, 2016 |
|  | (unaudited) |  |  | (audited) |
Amounts due to shareholders |  | $ | 331 |  |  | $ | 4,883 |
Amount due to non-controlling interest party |  |  | 1,441,548 |  |  |  | 1,441,548 |
Amount due to related companies |  |  | 1,161 |  |  |  | 16,955 |
Total |  | $ | 1,443,040 |  |  | $ | 1,463,386 |

X
- Definition Schedule of amounts due to related parties [Table Text Block] + References No definition available. + Details
Name: | GRNQ_ScheduleOfAmountsDueToRelatedPartiesTableTextBlock
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