| Cover | Sep. 01, 2023 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 01, 2023 |
| Current Fiscal Year End Date | --06-30 |
| Entity File Number | 001-36851 |
| Entity Registrant Name | ETF Managers Group Commodity Trust I |
| Entity Central Index Key | 0001610940 |
| Entity Tax Identification Number | 36-4793446 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 30 Maple Street - Suite 2 |
| Entity Address, City or Town | Summit |
| Entity Address, State or Province | NJ |
| Entity Address, Postal Zip Code | 07901 |
| City Area Code | 844 |
| Local Phone Number | 383-6477 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Shares of Breakwave Dry Bulk Shipping ETF | |
| Title of 12(b) Security | Shares of Breakwave Dry Bulk Shipping ETF |
| Trading Symbol | BDRY |
| Security Exchange Name | NYSEArca |
| Shares of Breakwave Tanker Shipping ETF | |
| Title of 12(b) Security | Shares of Breakwave Tanker Shipping ETF |
| Trading Symbol | BWET |
| Security Exchange Name | NYSEArca |
