XML 58 R47.htm IDEA: XBRL DOCUMENT v3.7.0.1

Business Combinations (Details Narrative) - $ / shares	Apr. 28, 2017	Apr. 25, 2017	Sep. 30, 2015
Billion Sino Holdings Limited [Member]
Purchase of equity interest and assets percentage		60.00%
Total consideration in cash		$ 3.50
Gushen Holding Limited [Member]
Purchase of equity interest and assets percentage	100.00%
Number of sale of stock	2
Total consideration in cash	$ 0.26
Falcon Secretaries Limited [Member]
Purchase of equity interest and assets percentage			100.00%
F&A [Member]
Purchase of equity interest and assets percentage			100.00%
Yabez [Member]
Purchase of equity interest and assets percentage			60.00%

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	dei_LegalEntityAxis=GRNQ_BillionSinoHoldingsLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=GRNQ_GushenHoldingLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=GRNQ_FalconSecretariesLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=GRNQ_FAndAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=GRNQ_YabezMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: