XML 45 R1.htm IDEA: XBRL DOCUMENT v2.4.1.9
Document And Entity Information
 9 Months Ended
Jan. 31, 2015
Mar. 02, 2015
Entity Information [Line Items]    
Entity Registrant Name DAKTRONICS INC /SD/  
Entity Central Index Key 0000915779  
Current Fiscal Year End Date --05-02  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   43,622,125dei_EntityCommonStockSharesOutstanding
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q3  
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jan. 31, 2015