Document And Entity Information - shares	9 Months Ended
	Dec. 31, 2015	Jan. 15, 2016
Entity Registrant Name	NVE CORP /NEW/
Entity Central Index Key	0000724910
Trading Symbol	nvec
Current Fiscal Year End Date	--03-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		4,844,845
Document Type	10-Q
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Amendment Flag	false