Annual report pursuant to Section 13 and 15(d)

Note 9 - Patent Rights (Details Textual)

v3.22.0.1
Note 9 - Patent Rights (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Aug. 18, 2021
May 12, 2021
Dec. 18, 2019
Apr. 13, 2018
Nov. 30, 2021
Nov. 30, 2020
Payments to Acquire Intangible Assets         $ 138 $ 80
Stock Issued During Period, Value, Purchase of Assets           693
Purchase and Sale Agreement with Andre Buys [Member]            
Deferred Compensation Arrangement with Individual, Distribution Paid       $ 100    
Legal Costs to Transfer Patent Rights       10    
Payments to Acquire Intangible Assets       $ 100    
Term for Second Payment (Year)       2 years    
Maximum [Member] | Purchase and Sale Agreement with Andre Buys [Member]            
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount       $ 800    
Minimum [Member] | Purchase and Sale Agreement with Andre Buys [Member]            
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount       $ 500    
Kore [Member]            
Payments to Acquire Productive Assets, Total   $ 3,500        
Asset Acquisition, Consideration Transferred, Transaction Cost   200        
Asset Acquisition, Consideration Transferred, Total   3,700        
Capitalized Key Patents and Intellectual Property Acquired   $ 2,800        
Ballistipax [Member]            
Asset Acquisition, Consideration Transferred, Total $ 342          
Patents [Member]            
Amortization of Intangible Assets, Total         200 40
Impairment of Intangible Assets, Finite-lived         0 $ 0
Patents [Member] | Purchase and Sale Agreement with Andre Buys [Member]            
Deferred Compensation Arrangement with Individual, Award Granted, Amount     $ 800      
Stock Issued During Period, Value, Purchase of Assets     $ 700      
Stock Issued During Period, Shares, Purchase of Assets (in shares)     386,681      
Cash Payment         $ 80  
Patents [Member] | Maximum [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         17 years  
Patents [Member] | Maximum [Member] | Purchase and Sale Agreement with Andre Buys [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         15 years  
Patents [Member] | Minimum [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         15 years  
Patents [Member] | Minimum [Member] | Purchase and Sale Agreement with Andre Buys [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         20 years  
Patents [Member] | Kore [Member] | Maximum [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         20 years  
Patents [Member] | Kore [Member] | Minimum [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         15 years  
Patents [Member] | Ballistipax [Member]            
Finite-lived Intangible Assets Acquired $ 60          
Finite-Lived Intangible Asset, Useful Life (Year) 17 years