Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Property and Equipment (Details Textual)

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Note 10 - Property and Equipment (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2021
Aug. 31, 2020
Nov. 30, 2020
Depreciation, Depletion and Amortization, Total $ 100 $ 100 $ 353 $ 153  
Deposits Assets, Noncurrent 1,084   1,084   $ 619
Lessor, Sales-type Lease, Assumptions and Judgments, Value of Underlying Asset, Amount $ 100   $ 100    
Computer Equipment and Software [Member] | Minimum [Member]          
Property, Plant and Equipment, Useful Life (Year)     3 years    
Computer Equipment and Software [Member] | Maximum [Member]          
Property, Plant and Equipment, Useful Life (Year)     7 years    
Furniture and Fixtures [Member] | Minimum [Member]          
Property, Plant and Equipment, Useful Life (Year)     3 years    
Furniture and Fixtures [Member] | Maximum [Member]          
Property, Plant and Equipment, Useful Life (Year)     7 years    
Leasehold Improvements [Member] | Minimum [Member]          
Property, Plant and Equipment, Useful Life (Year)     3 years    
Leasehold Improvements [Member] | Maximum [Member]          
Property, Plant and Equipment, Useful Life (Year)     7 years    
Machinery and Equipment [Member] | Minimum [Member]          
Property, Plant and Equipment, Useful Life (Year)     3 years    
Machinery and Equipment [Member] | Maximum [Member]          
Property, Plant and Equipment, Useful Life (Year)     7 years