XML 46 R35.htm IDEA: XBRL DOCUMENT v3.8.0.1

Property and Equipment, Net (Details Narrative) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Depreciation expense, classify as operating expenses		$ 3,203
Office leasehold pledged to banks as collateral security	$ 1,398,362
Offices Properties [Member]
Property, plant and equipment, useful life	50 years
Remaining life term of property, plant and equipment	27 years

X

- Definition

Office leasehold pledged to banks as collateral security.

+ References

No definition available.

+ Details

Name:	GRNQ_OfficeLeaseholdPledgedToBanksAsCollateralSecurity
Namespace Prefix:	GRNQ_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Remaining life term of property, plant and equipment.

+ References

No definition available.

+ Details

Name:	GRNQ_RemainingLifeTermOfPropertyPlantAndEquipment
Namespace Prefix:	GRNQ_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=GRNQ_OfficeLeaseholdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: