Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.10.0.1
Document and Entity Information - USD ($)
12 Months Ended
Aug. 31, 2018
Nov. 07, 2018
Feb. 28, 2018
Document and Entity Information [Abstract]      
Entity Registrant Name Lexaria Bioscience Corp.    
Entity Central Index Key 0001348362    
Trading Symbol lxrp    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --08-31    
Entity Filer Category Accelerated Filer    
Entity Well Known Seasoned Issuer No    
Entity Common Stock, Shares Outstanding   77,090,621  
Entity Public Float     $ 75,674,412
Document Type 10-K    
Document Period End Date Aug. 31, 2018    
Amendment Flag false    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Entity Shell Company false    
Entity Small Business false    
Entity Emerging Growth Company false