Fees (Details)	6 Months Ended
Jun. 30, 2013
Monthly Rate [Member] \| Minimum [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	0.167%
Annual Rate [Member] \| Maximum [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	2.00%
Quarterly Rate [Member]
Fees (Details) [Line Items]
Advisors Incentive Fee as a Percentage of New Trading Profit	20.00%

Incentive fee as a percentage of the New Trading Profit. New Trading Profit is equal to the Trading Profit that is in excess of the highest level of such cumulative Trading Profit as of any previous period end. Trading Profit is calculated by including realized and unrealized profits and losses, excluding interest income, and deducting any management and brokerage fees.

No definition available.

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