Document And Entity Information - shares
6 Months Ended
Jun. 30, 2018
Jul. 30, 2018
Document And Entity Information [Abstract]    
Entity Registrant Name Pulse Biosciences, Inc.  
Entity Filer Category Accelerated Filer  
Entity Central Index Key 0001625101  
Trading Symbol plse  
Amendment Flag false  
Document Type 10-Q  
Document Fiscal Period Focus Q2  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2018  
Current Fiscal Year End Date --12-31  
Entity Common Stock, Shares Outstanding   16,886,346