| Document And Entity Information | Sep. 09, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 09, 2024 |
| Entity Registrant Name | Contango Ore, Inc. |
| Entity Central Index Key | 0001502377 |
| Entity Emerging Growth Company | false |
| Entity File Number | 001-35770 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 27-3431051 |
| Entity Address, Address Line One | 516 2nd Avenue |
| Entity Address, Address Line Two | Suite 401 |
| Entity Address, City or Town | Fairbanks |
| Entity Address, State or Province | AK |
| Entity Address, Postal Zip Code | 99701 |
| City Area Code | (907) |
| Local Phone Number | 888-4273 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, Par Value $0.01 per share |
| Trading Symbol | CTGO |
| Security Exchange Name | NYSEAMER |
