Document And Entity Information
6 Months Ended
Jun. 28, 2014
Aug. 01, 2014
Document and Entity Information [Abstract]    
Entity Registrant Name BUILD A BEAR WORKSHOP INC  
Document Type 10-Q  
Current Fiscal Year End Date --12-28  
Entity Common Stock, Shares Outstanding   17,367,530
Amendment Flag false  
Entity Central Index Key 0001113809  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Filer Category Accelerated Filer  
Document Period End Date Jun. 28, 2014  
Document Fiscal Year Focus 2014  
Document Fiscal Period Focus Q2