Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Apr. 30, 2016	Jul. 07, 2016	Oct. 30, 2015
Document Information [Line Items]
Entity Registrant Name	National Beverage Corp.
Entity Central Index Key	0000069891
Trading Symbol	fizz
Current Fiscal Year End Date	--04-30
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)		46,556,450
Entity Public Float			$ 435.2
Document Type	10-K
Document Period End Date	Apr. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Amendment Flag	false