Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
$ in Millions
12 Months Ended
Aug. 31, 2022
Nov. 25, 2022
Feb. 28, 2022
Cover [Abstract]      
Entity Registrant Name LEXARIA BIOSCIENCE CORP.    
Entity Central Index Key 0001348362    
Document Type 10-K    
Amendment Flag false    
Entity Voluntary Filers No    
Current Fiscal Year End Date --08-31    
Entity Well Known Seasoned Issuer No    
Entity Small Business true    
Entity Shell Company false    
Entity Emerging Growth Company false    
Entity Current Reporting Status Yes    
Document Period End Date Aug. 31, 2022    
Entity Filer Category Non-accelerated Filer    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Entity Common Stock Shares Outstanding   5,950,998  
Entity Public Float     $ 21
Document Annual Report true    
Document Transition Report false    
Entity File Number 000-52138    
Entity Incorporation State Country Code NV    
Entity Tax Identification Number 20-2000871    
Entity Address Address Line 1 #100 – 740 McCurdy Road    
Entity Address City Or Town Kelowna    
Entity Address State Or Province BC    
Entity Address Country CA    
Entity Address Postal Zip Code V1X 2P7    
City Area Code 250    
Auditor Location Vancouver, Canada    
Local Phone Number 765-6424    
Security 12g Title Common Stock, Par Value $0.001    
Trading Symbol LEXX    
Security Exchange Name NASDAQ    
Entity Interactive Data Current Yes    
Auditor Firm Id 731