Statements of Assets and Liabilities (Parentheticals) - USD ($) |
Jun. 30, 2022 |
Jun. 30, 2021 |
|---|---|---|
| BREAKWAVE DRY BULK SHIPPING ETF | ||
| Securities, at fair value | $ 17,208,763 | $ 42,654,058 |
| ETF MANAGERS GROUP COMMODITY TRUST I | ||
| Securities, at fair value | $ 17,208,763 | $ 42,654,058 |