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Statements of Financial Condition (Parenthetical) - USD ($) | Mar. 31, 2016 | Jun. 30, 2015
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SIT RISING RATE ETF [Member] |  |
Investments | $ 19,003,386 | $ 5,682,577
Open Option Contracts Written, Premiums | 76,048 | 21,797
ETF MANAGERS GROUP COMMODITY TRUST I [Member] |  |
Investments | 19,003,386 | 5,682,577
Open Option Contracts Written, Premiums | $ 76,048 | $ 21,797

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- Definition Sum of the carrying amounts as of the balance sheet date of all investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(h)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Represents the premiums earned on the open option contracts held by the fund. This item is not required to be disclosed in Regulation S-X but is commonly reported by some funds. + References No definition available. + Details
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