Cover - shares	6 Months Ended
	Jun. 30, 2022	Aug. 10, 2022
Cover [Abstract]
Entity Registrant Name	SCANDIUM INTERNATIONAL MINING CORP.
Entity Central Index Key	0001408146
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Jun. 30, 2022
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2022
Entity Common Stock Shares Outstanding		355,860,813
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	000-54416
Entity Incorporation State Country Code	Z4
Entity Tax Identification Number	98-1009717
Entity Address Address Line 1	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 Interactive Data Current	Yes