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Document And Entity Information
Jul. 31, 2021
Document Information [Line Items]  
Entity, Registrant Name Daktronics, Inc.
Document, Type 8-K
Document, Period End Date Sep. 01, 2021
Entity, Incorporation, State or Country Code SD
Entity, File Number 0-23246
Entity, Tax Identification Number 46-0306862
Entity, Address, Address Line One 201 Daktronics Drive
Entity, Address, City or Town Brookings
Entity, Address, State or Province SD
Entity, Address, Postal Zip Code 57006
City Area Code 605
Local Phone Number 692-0200
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity, Emerging Growth Company false
Amendment Flag false
Entity, Central Index Key 0000915779
CommonStockNoParValue Custom [Member]  
Document Information [Line Items]  
Title of 12(b) Security Common Stock, No Par Value
Trading Symbol DAKT
Security Exchange Name NASDAQ
PreferredStockPurchaseRights Custom [Member]  
Document Information [Line Items]  
Title of 12(b) Security Preferred Stock Purchase Rights
Trading Symbol DAKT
Security Exchange Name NASDAQ