Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2022	Nov. 09, 2022
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-38719
Entity Registrant Name	MEDALIST DIVERSIFIED REIT, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	47-5201540
Entity Address, Address Line One	1051 E. Cary Street Suite 601
Entity Address, Address Line Two	James Center Three
Entity Address, City or Town	Richmond
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	23219
City Area Code	804
Local Phone Number	344-4435
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		17,439,947
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001654595
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Common Stock, $0.01 par value per share
Document Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value per share
Security Exchange Name	NASDAQ
Trading Symbol	MDRR
8.0% Series A Cumulative Redeemable Preferred Stock, $0.01 par value per share
Document Information [Line Items]
Title of 12(b) Security	8.0% Series A Cumulative Redeemable Preferred Stock, $0.01 par value per share
Security Exchange Name	NASDAQ
Trading Symbol	MDRRP