Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.21.2
Document And Entity Information - shares
9 Months Ended
Aug. 31, 2021
Sep. 30, 2021
Document Information [Line Items]    
Entity Central Index Key 0001354866  
Entity Registrant Name Byrna Technologies Inc.  
Amendment Flag false  
Current Fiscal Year End Date --11-30  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2021  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Aug. 31, 2021  
Document Transition Report false  
Entity File Number 333-132456  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 71-1050654  
Entity Address, Address Line One 100 Burtt Road, Suite 115  
Entity Address, City or Town Andover,  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 01810  
City Area Code 978  
Local Phone Number 868-5011  
Entity Current Reporting Status No  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   23,613,945