Document and Entity Information - shares	6 Months Ended
	Sep. 30, 2020	Nov. 16, 2020
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Trading Symbol	MSN
Entity Registrant Name	EMERSON RADIO CORP
Entity Central Index Key	0000032621
Current Fiscal Year End Date	--03-31
Entity Filer Category	Non-accelerated Filer
Title of 12(b) Security	Common Stock, par value $.01 per share
Security Exchange Name	NYSEAMER
Entity Incorporation, State or Country Code	DE
Entity Current Reporting Status	Yes
Entity Small Business	true
Entity Emerging Growth Company	false
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding		21,042,652
Entity Shell Company	false
Entity File Number	001-07731
Entity Tax Identification Number	22-3285224
Entity Address, Address Line One	35 Waterview Blvd.
Entity Address, Address Line Two	Suite 140
Entity Address, City or Town	Parsippany
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07054
City Area Code	973
Local Phone Number	428-2000