Annual report pursuant to Section 13 and 15(d)

Note 4 - Summary of Significant Accounting Policies (Details Textual)

v3.25.0.1
Note 4 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
12 Months Ended
Aug. 19, 2024
Jan. 10, 2023
Nov. 30, 2024
Nov. 30, 2023
Nov. 30, 2022
Goodwill, Impairment Loss     $ 0 $ 0  
Payments to Acquire Equity Method Investments     (0) 520,000  
Income (Loss) from Equity Method Investments     (42,000) (603,000)  
Accounts Receivable, Allowance for Credit Loss, Current     300,000 600,000 $ 100,000
Tangible Asset Impairment Charges     $ 0 0  
Standard Product Warranty, Term (Year)     1 year    
Extended Product Warranty, Term (Year)     3 years    
Contract with Customer, Liability, Current     $ 1,791,000 1,844,000  
Advertising Expense     12,400,000 4,600,000  
Research and Development Expense     600,000 600,000  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued     0 0  
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent     342,000 (436,000)  
Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, Net of Tax, Portion Attributable to Parent     65,000 0  
Intercompany Loan [Member]          
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent     400,000 (700,000)  
Customer Advances [Member]          
Contract with Customer, Liability, Current     1,700,000 1,700,000  
Warranty Obligations [Member]          
Contract with Customer, Liability, Current     $ 100,000 100,000  
Order or Production Backlog [Member]          
Contract with Customer, Liability, Current       100,000  
Customer Lists [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     2 years    
Minimum [Member] | Patents [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     10 years    
Minimum [Member] | Computer and Software, Furniture and Fixtures, and Machinery and Equipment [Member]          
Property, Plant and Equipment, Useful Life (Year)     3 years    
Minimum [Member] | Leasehold Improvements [Member]          
Property, Plant and Equipment, Useful Life (Year)     3 years    
Maximum [Member] | Patents [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     17 years    
Maximum [Member] | Computer and Software, Furniture and Fixtures, and Machinery and Equipment [Member]          
Property, Plant and Equipment, Useful Life (Year)     7 years    
Maximum [Member] | Leasehold Improvements [Member]          
Property, Plant and Equipment, Useful Life (Year)     7 years    
Byrna LATAM [Member]          
Equity Method Investment, Ownership Percentage 51.00% 51.00%      
Payments to Acquire Equity Method Investments   $ 500,000      
Proceeds from Sale of Equity Method Investments $ 1        
Income (Loss) from Equity Method Investments     $ (100,000) (600,000)  
Equity Method Investments     $ 0 $ 0