XML 43 R32.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Cash Surrender Value of Life Insurance (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2017
Cash Surrender Value Of Life Insurance |
Summary of Net Cash Surrender Value of Life Insurance | A summary of net cash surrender value of life insurance as of March 31, 2017 is reported as below:
|  | As of March 31, 2017 |  |  | As of December 31, 2016 |
|  | (unaudited) |  |  |  |
Cash surrender value of life insurance |  | $ | 173,346 |  |  | $ | 172,531 |
Less: policy loan balance outstanding |  |  | (116,473 | ) |  |  | (116,473 | )
Cash surrender value of life insurance, net |  | $ | 56,873 |  |  | $ | 56,058 |

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

X
- Definition Summary of net cash surrender value of life insurance [Table Text Block] + References No definition available. + Details
Name: | GRNQ_SummaryOfNetCashSurrenderValueOfLifeInsuranceTextBlock
Namespace Prefix: | GRNQ_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration