| Cover | Aug. 07, 2023 |
| Cover [Abstract] | |
| Entity Registrant Name | UNITED STATES ANTIMONY CORPORATION |
| Entity Central Index Key | 0000101538 |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Emerging Growth Company | false |
| Document Period End Date | Aug. 07, 2023 |
| Entity Incorporation State Country Code | MT |
| Entity Tax Identification Number | 81-0305825 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity File Number | 001-08675 |
| Entity Address Address Line 1 | P.O. Box 643 |
| Entity Address City Or Town | Thompson Fall |
| Entity Address State Or Province | MT |
| Entity Address Postal Zip Code | 59873 |
| City Area Code | 406 |
| Local Phone Number | 827-3523 |
| Security 12b Title | Common Stock, $0.01 par value |
| Trading Symbol | UAMY |
| Security Exchange Name | NYSEAMER |
