Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2019	Apr. 07, 2020
Document and Entity Information [Abstract]
Entity Registrant Name	SusGlobal Energy Corp.
Entity Central Index Key	0001652539
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Well Known Seasoned Issuer	No
Entity Public Float	$ 0
Entity Common Stock, Shares Outstanding		60,501,830
Document Type	10-K
Document Period End Date	Dec. 31, 2019
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Interactive Data Current	Yes