Quarterly report pursuant to Section 13 or 15(d)

Note 13 - Patent Rights (Details Textual)

v3.21.2
Note 13 - Patent Rights (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 18, 2021
May 12, 2021
Dec. 18, 2019
Apr. 13, 2018
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2021
Aug. 31, 2020
Payments to Acquire Intangible Assets             $ 70 $ 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   3,702            
Capitalized Key Patents and Intellectual Property Acquired   $ 2,800            
Patents [Member]                
Amortization of Intangible Assets, Total         $ 60 $ 20 100 50
Impairment of Intangible Assets, Finite-lived         0 0 $ 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           $ 100    
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] | Purchase and Sale Agreement with Andre Buys [Member]                
Finite-Lived Intangible Asset, Useful Life (Year)             20 years  
Patents [Member] | Kore [Member]                
Amortization of Intangible Assets, Total         40   $ 40  
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              
Amortization of Intangible Assets, Total         $ 0   $ 0  
Finite-Lived Intangible Asset, Useful Life (Year) 17 years