Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Apr. 13, 2022	Jun. 30, 2021
Cover [Abstract]
Entity Registrant Name	SUSGLOBAL ENERGY CORP.
Entity Central Index Key	0001652539
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		97,208,547
Document Type	10-K
Document Period End Date	Dec. 31, 2021
Amendment Flag	false
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false
Entity Interactive Data Current	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Public Float			$ 21,392,709
Entity File Number	000-56024
Entity Incorporation, State or Country Code	DE
Document Transition Report	false
Entity Address, Address Line One	200 Davenport Road
Entity Address, City or Town	Toronto
Entity Address, State or Province	ON
Entity Address, Country	CA
Entity Address, Postal Zip Code	M5R1J2
City Area Code	416
Local Phone Number	223-8500
Entity Tax Identification Number	38-4039116
Document Annual Report	true
ICFR Auditor Attestation Flag	false
Auditor Name	MNP LLP
Auditor Location	Toronto, Canada
Auditor Firm ID	1930