Net Asset Value and Financial Highlights (Details Narrative)	Feb. 19, 2015
Net Asset Value And Financial Highlights [Abstract]
Percentage of fund expenses capped	1.50%

It denotes the percentage of fund expenses capped at average net assets.

No definition available.

Name:	rise_PercentageOfFundExpensesCapped
Namespace Prefix:	rise_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant