Quarterly report pursuant to Section 13 or 15(d)

Note 16 - Lines of Credit (Details Textual)

v3.21.2
Note 16 - Lines of Credit (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 06, 2021
Jan. 19, 2021
Aug. 31, 2021
Aug. 31, 2021
Aug. 31, 2020
Debt Issuance Costs, Line of Credit Arrangements, Gross     $ 100 $ 100  
Amortization of Debt Issuance Costs       16 $ 0
Interest Expense [Member]          
Amortization of Debt Issuance Costs     10 20  
Revolving Credit Facility [Member]          
Line of Credit Facility, Maximum Borrowing Capacity $ 7,500 $ 5,000      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   0.25%      
Debt Instrument, Amendment Duration (Day) 150 days        
Debt Instrument, Fee Amount $ 20        
Line of Credit Facility, Covenant, Maximum Outstanding $ 5,000        
Long-term Line of Credit, Total     0 0  
Line of Credit Facility, Expiration Date   Jan. 19, 2024      
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 1,500 1,500  
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   0.25%      
Long-term Line of Credit, Total     $ 0 $ 0  
Line of Credit Facility, Expiration Date   Jan. 19, 2024      
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%