Document and Entity Information - shares	3 Months Ended
	May 31, 2020	Jul. 14, 2020
Cover [Abstract]
Entity Registrant Name	MAGNA LAB INC
Entity Central Index Key	0000895464
Document Type	10-Q
Document Period End Date	May 31, 2020
Amendment Flag	false
Current Fiscal Year End Date	--02-28
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Shell Company	true
Entity Interactive Data Current	Yes
Entity Incorporation State Country Code	NY
Entity File Number	0-21320
Entity Common Stock, Shares Outstanding		1,178,762
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2021