Summary of Significant Accounting Policies (Details)	12 Months Ended
Dec. 31, 2016
Maximum [Member]
Summary of Significant Accounting Policies (Details) [Line Items]
Offering Costs as Percentage of Month-end Net Asset Value	0.50%

Offering costs as percentage of the Trust's average month-end net assets value and are paid and expensed as incurred.

No definition available.

Name:	rjog_OfferingCostAsPercentageOfMonthEndNetAssetValue
Namespace Prefix:	rjog_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration