Document And Entity Information	9 Months Ended
	Sep. 30, 2021
Document Information Line Items
Entity Registrant Name	MERIDA MERGER CORP. I
Document Type	S-4/A
Amendment Flag	true
Amendment Description	AMENDMENT NO. 4
Entity Central Index Key	0001785592
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Incorporation, State or Country Code	DE