Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Jul. 26, 2021	Jun. 30, 2020
Document and Entity Information [Abstract]
Entity Registrant Name	Merida Merger Corp. I
Entity Central Index Key	0001785592
Amendment Flag	true
Amendment Description	Merida Merger Corp. I (the “Company,” “we”, “our” or “us”) is filing this Amendment No. 1 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 (the “Original 10-K”) as a comprehensive amendment to amend and restate its financial statements and related footnote disclosures as of and for the year ended December 31, 2020, and the financial statements and related footnote disclosures included in the Annual Report on Form 10-K as of and for the period ended December 31, 2019 (the “2019 10-K”), each of the Forms 10-Q as of and for the periods ended March 31, 2020, June 30, 2020 and September 30, 2020 (collectively, the “Original 10-Qs”), and the balance sheet as of November 7, 2019 (the “November 7, 2019 Balance Sheet”).
Current Fiscal Year End Date	--12-31
Document Type	10-K/A
Document Period End Date	Dec. 31, 2020
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020
Entity Well Known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Ex Transition Period	false
Entity Small Business	true
Entity Current Reporting Status	Yes
Entity Shell Company	true
Entity Emerging Growth Company	true
Entity Common Stock, Shares Outstanding		16,371,940
Entity Public Float			$ 127,285,194
Entity File Number	001-39119
Entity Interactive Data Current	Yes
Entity Incorporation State Country Code	DE