| Document And Entity Information - USD ($) | 12 Months Ended | ||
| Dec. 31, 2022 | Mar. 07, 2023 | Jun. 30, 2022 | |
| Document Information [Line Items] | |||
| Entity, Registrant Name | Scandium International Mining Corp. | ||
| Document, Type | 10-K/A | ||
| Document, Annual Report | true | ||
| Document, Period End Date | Dec. 31, 2022 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Document, Fiscal Period Focus | FY | ||
| Document, Fiscal Year Focus | 2022 | ||
| Document, Transition Report | false | ||
| Entity, File Number | 000-54416 | ||
| Entity, Incorporation, State or Country Code | Z4 | ||
| Entity, Tax Identification Number | 98-1009717 | ||
| Entity, Address, Address Line One | 1390 Ione Pass Trail | ||
| Entity, Address, City or Town | Reno | ||
| Entity, Address, State or Province | NV | ||
| Entity, Address, Postal Zip Code | 89523 | ||
| City Area Code | 775 | ||
| Local Phone Number | 355-9500 | ||
| Entity, Well-known Seasoned Issuer | No | ||
| Entity, Voluntary Filers | No | ||
| Entity, Current Reporting Status | Yes | ||
| Entity, Interactive Data, Current | Yes | ||
| Entity, Filer Category | Non-accelerated Filer | ||
| Entity, Small Business | true | ||
| Entity, Emerging Growth Company | false | ||
| ICFR Auditor Attestation Flag | false | ||
| Document, Financial Statement Error Correction Flag | false | ||
| Entity, Shell Company | false | ||
| Entity, Public Float | $ 26,235,276 | ||
| Entity, Common Stock Shares, Outstanding | 355,860,813 | ||
| Amendment Description | This Amendment No. 1 to the Annual Report on Form 10-K for the fiscal year ended December 31, 2022, which was filed with the Securities and Exchange Commission on March 7, 2023 (the “Original 10-K”), is being filed to amend information in Part I, Items 1 and 2. Except as described above, no other amendments are being made to the Original 10-K. This amendment does not reflect events occurring after the filing of the Original 10-K or modify or update the disclosure contained therein in any way other than as required to reflect the amendments discussed above. | ||
| Auditor Name | Davidson & Company LLP | ||
| Auditor Location | British Columbia, Canada | ||
| Auditor Firm ID | 731 | ||
| Amendment Flag | true | ||
| Entity, Central Index Key | 0001408146 |
