Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 14, 2021	Jun. 30, 2020
Document Information Line Items
Entity Registrant Name	MERIDA MERGER CORP. I
Document Type	10-K/A
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		14,982,073
Entity Public Float			$ 127,285,194
Amendment Flag	true
Amendment Description	Merida Merger Corp. I (the “Company,” “we”, “our” or “us”) is filing this Amendment No. 4 (“Amendment No. 4”) to the Annual Report on Form 10-K/A (the “Amendment”) to amend the Annual Report on Form 10-K for the year ended December 31, 2020, originally filed with the U.S. Securities and Exchange Commission (the “SEC”) on March 31, 2021, amended on July 26, 2021, November 23, 2021 and on December 9, 2021 (as amended, the “Original 10-K”) to include certain additional disclosures in Part I, Item 1A, Risk Factors and Part II, Item 9A, Controls and Procedures. For the convenience of the reader, this Amendment No. 4 sets forth the Original 10-K in its entirety, as amended to reflect the aforementioned changes. No attempt has been made in this Amendment No. 4 to update other disclosures presented in the Original 10-K.
Entity Central Index Key	0001785592
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Shell Company	true
Entity Ex Transition Period	false
Document Annual Report	true
Entity Address, State or Province	NY
Entity File Number	001-39119
Entity Incorporation, State or Country Code	DE
Entity Interactive Data Current	Yes