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v3.19.3.a.u2

Agreements (Details) - USD ($) |  |  | 3 Months Ended | 5 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 22, 2018 | Jan. 01, 2018 | Dec. 31, 2019 | Sep. 30, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 01, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Agreements (Textual) |  |  |  |  |  |  |  |  |
Waiver of commodity trading advisor fees |  |  | $ 6,561 |  | $ 10,462 |  |  | $ 16,213 | $ 23,499
Expense related to distribution or servicing and underwriting fees |  |  | 7,883 |  | 8,568 |  |  | 15,766 | 17,136
Noninterest expense commission expense |  |  | 8,129 |  | 25,590 |  |  | 18,292 | 50,955
Costs and expenses |  |  | 258,785 |  | 379,573 |  |  | 524,272 | 752,262
Management fee expense |  |  | 12,584 |  | 12,602 |  |  | 25,162 | 25,204
Revised annual sponsor fee |  |  | 50,272 |  | 56,609 |  |  | 100,544 | 110,249
Admin/accounting/custodian/transfer agent fees |  |  | 30,027 |  | 29,667 |  |  | 60,054 | 59,334
Wholesale support fees |  |  | 8,393 |  | 24,082 |  |  | $ 17,493 | 46,218
Sit Fixed Income Advisors II, LLC [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Fund expenses annual rate percentage |  |  |  |  |  |  | 1.00% |  |
Percentage of fee paid |  | 0.20% |  |  |  |  |  |  |
SIT RISING RATE ETF [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Fund expenses annual rate percentage |  |  |  |  |  |  |  | 0.10% |
Percentage of fee paid |  | 1.00% |  |  |  |  |  |  |
Waiver of commodity trading advisor fees |  |  |  |  |  |  |  |  |
Assets under management percentage |  |  |  |  |  |  |  | 0.05% |
Expense related to distribution or servicing and underwriting fees |  |  | 3,906 |  | 4,410 |  |  | $ 7,812 | 8,820
Percentage of brokerage commissions and fees |  |  |  |  |  |  |  | 0.08% |
Noninterest expense commission expense |  |  | 927 |  | 19,434 |  |  | $ 2,793 | 35,862
Trustee fees |  |  | 628 |  | 630 |  |  | 1,256 | 1,260
Costs and expenses |  |  | 116,924 |  | 206,506 |  |  | 236,108 | 400,559
Management fee expense |  |  | 6,301 |  | 6,301 |  |  | 12,596 | 12,602
Revised annual sponsor fee |  |  | 18,852 |  | 25,103 |  |  | 37,704 | 47,237
Admin/accounting/custodian/transfer agent fees |  |  | 14,479 |  | 14,191 |  |  | 28,958 | 28,382
Wholesale support fees |  |  | 1,566 |  | 16,915 |  |  | 3,583 | 31,671
Fund expenses |  |  | 100,323 |  | 17,920 |  |  | 197,476 | $ 47,986
SIT RISING RATE ETF [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Accrued professional fees, current |  |  | 50,000 |  |  |  |  | 50,000 |
Custody fees |  |  |  |  |  |  |  | 4,800 |
SIT RISING RATE ETF [Member] | Sponsors Advisory Services [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Advisory services management fees percentage |  |  |  |  |  |  |  |  | 0.15%
Waiver of commodity trading advisor fees |  |  | 6,561 |  | 10,462 |  |  | 16,213 | $ 23,499
Payments for fees |  |  | 100,323 |  | 17,920 |  |  | $ 197,476 | $ 47,986
Management fee expense |  | $ 75,000 |  |  |  |  |  |  |
Description CTA fee |  | Effective January 1, 2018, RISE’s CTA fee, calculated daily and paid monthly in arrears, was reduced from .50% per annum to .20% per annum of average daily net assets. |  |  |  |  |  |  |
SIT RISING RATE ETF [Member] | Sponsors Advisory Services [Member] | Principal Financial Officer and Chief Compliance Officer [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Management fee expense |  | $ 25,000 |  |  |  |  |  |  |
SIT RISING RATE ETF [Member] | Custody Services [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Assets under management percentage |  |  |  |  |  |  |  | 0.01% | 0.10%
Description CTA fee |  | Effective April 1, 2019, the fee paid to the Sponsor for tax return preparation was reduced from $100,000 per year to $50,000 per year. |  |  |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Advisory services management fees percentage |  |  |  |  |  |  |  | 3.50% |
Fund expenses annual rate percentage |  | 1.00% |  |  |  |  |  |  |
Waiver of commodity trading advisor fees |  |  | 6,561 |  | 10,462 |  |  | $ 16,213 | $ 23,499
Assets under management percentage | 0.05% |  |  |  |  |  |  |  |
Expense related to distribution or servicing and underwriting fees |  |  | 3,977 |  | 4,158 |  |  | $ 7,954 | $ 8,316
Percentage of brokerage commissions and fees |  |  |  |  |  |  |  | 0.76% | 0.08%
Noninterest expense commission expense |  |  | 7,202 | $ 7,202 | 6,156 | $ 6,156 |  | $ 15,499 | $ 15,093
Trustee fees |  |  | 628 |  | 630 |  |  | 1,256 | 1,260
Costs and expenses |  |  | 141,861 |  | 173,067 |  |  | 288,164 | 351,703
Management fee expense |  |  | 6,283 |  | 6,301 |  |  | 12,566 | 12,602
Administrative and other expenses absorbed by sponsor |  |  | 112,262 |  | 131,193 |  |  | 217,318 | 256,383
Revised annual sponsor fee |  |  | 31,420 |  | 31,506 |  |  | 62,840 | 63,012
Admin/accounting/custodian/transfer agent fees |  |  | 15,548 |  | 15,476 |  |  | 31,096 | 30,952
Wholesale support fees |  |  | 6,827 |  | 7,167 |  |  | 13,910 | 14,547
Fund expenses |  |  | $ 112,262 |  | $ 131,193 |  |  | $ 217,318 | $ 256,383
BREAKWAVE DRY BULK SHIPPING ETF | Minimum [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Accrued professional fees, current | $ 45,000 |  |  |  |  |  |  |  |
Custody fees | $ 4,800 |  |  |  |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Sponsors Advisory Services [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Advisory services management fees percentage |  |  |  |  |  |  |  | 0.15% |
Fund expenses annual rate percentage | 3.50% |  |  |  |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Custody Services [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Assets under management percentage | 0.01% |  |  |  |  |  |  | 0.12% |
Management fee expense |  |  |  |  |  |  |  | $ 25,000 |
Distributor [Member] | Alps Distributors, Inc. [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Assets under management percentage |  |  |  |  |  |  |  | 0.02% |
Distributor [Member] | Minimum [Member] | Alps Distributors, Inc. [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Payments for fees |  |  |  |  |  |  |  | $ 15,000 |
ETF MANAGERS GROUP COMMODITY TRUST I [Member] | Sponsors Advisory Services [Member] |  |  |  |  |  |  |  |  |
Agreements (Textual) |  |  |  |  |  |  |  |  |
Advisory services management fees percentage |  |  |  |  |  |  |  | 1.45% |
Management fee expense |  |  |  |  |  |  |  | $ 125,000 |

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