Annual report pursuant to Section 13 and 15(d)

Note 12 - Lines of Credit (Details Textual)

v3.22.4
Note 12 - Lines of Credit (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Jan. 19, 2021
Nov. 30, 2022
Nov. 30, 2021
Aug. 31, 2021
Debt Issuance Costs, Line of Credit Arrangements, Gross   $ 100   $ 100
Amortization of Debt Issuance Costs   $ 30 $ 30  
Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 5,000      
Line of Credit Facility, Interest Rate at Period End   7.50%    
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%      
Long-Term Line of Credit, Total   $ 0 0  
Revolving Credit Facility [Member] | Minimum [Member]        
Debt Instrument, Interest Rate, Stated Percentage 4.00%      
Revolving Credit Facility [Member] | Prime Rate [Member]        
Debt Instrument, Basis Spread on Variable Rate 0.50%      
Equipment Financing Line of Credit [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 1,500      
Line of Credit Facility, Interest Rate at Period End   7.50%    
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%      
Long-Term Line of Credit, Total   $ 0 $ 0  
Equipment Financing Line of Credit [Member] | Minimum [Member]        
Debt Instrument, Interest Rate, Stated Percentage 4.00%      
Equipment Financing Line of Credit [Member] | Prime Rate [Member]        
Debt Instrument, Basis Spread on Variable Rate 0.50%