Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2022	Aug. 22, 2022
Document Information [Line Items]
Entity Central Index Key	0001653821
Entity Registrant Name	CEN BIOTECH INC
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2022
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	000-55557
Entity Incorporation, State or Country Code	A6
Entity Address, Address Line One	300-3295 Quality Way
Entity Address, City or Town	Windsor
Entity Address, State or Province	ON
Entity Address, Postal Zip Code	N8T 3R9
City Area Code	519
Local Phone Number	419-4958
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		61,804,729