Advances From Stockholders (Details)	Jun. 30, 2012
Advances From Stockholders (Textual) [Abstract]
Interest rate on unsecured payable on demand advances from stockholders	12.00%

Interest rate on unsecured payable on demand advances from stockholders.

No definition available.

Name:	jgri_InterestRateOnUnsecuredPayableOnDemandAdvancesFromStockholders
Namespace Prefix:	jgri_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant