Net Asset Value and Financial Highlights (Details Textual)	Mar. 22, 2018	Jan. 01, 2018
Net Asset Value and Financial Highlights (Textual)
Percentage of fund expenses capped	3.50%	1.00%

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