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Note 6 - Long-term Debt (Details Textual)
3 Months Ended
Aug. 31, 2022
USD ($)
Jul. 29, 2022
USD ($)
Aug. 31, 2025
USD ($)
Aug. 31, 2024
USD ($)
Feb. 05, 2025
Feb. 04, 2025
Feb. 05, 2024
USD ($)
Jan. 14, 2024
USD ($)
Aug. 23, 2021
Amortization of Debt Issuance Costs     $ 860 $ 1,290          
Debt Instrument, Debt Service Coverage Ratio                 1.25
Debt Instrument, Debt to Tangible Net Worth Ratio                 4
Debt Instrument, Debt to Tangible Net Worth Ratio, Decrease Each Year                 50.00%
Long-Term Debt, Maturities, Repayments of Principal in Next Rolling 12 Months     2,324,241            
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Two     7,746,680            
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Three     552,361            
Minimum [Member]                  
Debt Instrument, Debt to Tangible Net Worth Ratio                 3
I B C Loan Agreement [Member]                  
Debt Instrument, Periodic Payment     250,000            
Debt Instrument, Covenant, Maximum Amount of Unauthorized Distributions   $ 1,000,000         $ 1,000,000 $ 1,000,000  
Guarantor Obligations, Percentage 32.40%                
Guarantees Combined Amount $ 3,500,000                
Debt Instrument, Covenant, Maximum Stock Repurchase             $ 1,000,000    
Revolving Credit Facility [Member]                  
Line of Credit Facility, Maximum Borrowing Capacity   $ 6,000,000 $ 3,630,000            
Debt Instrument, Interest Rate, Stated Percentage         6.50% 7.50%      
Debt Instrument, Basis Spread on Variable Rate   0.50%              
Debt Instrument, Interest Rate, Effective Percentage     8.00%