Document and Entity Information - USD ($)	12 Months Ended
	Mar. 31, 2018	Jun. 15, 2018	Sep. 30, 2017
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Trading Symbol	MSN
Entity Registrant Name	EMERSON RADIO CORP
Entity Central Index Key	0000032621
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		22,571,951
Entity Public Float			$ 12,501,554