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Note 16 - Commitments and Contingencies (Details Textual) - USD ($)
12 Months Ended
Aug. 31, 2025
Aug. 31, 2024
Jun. 30, 2025
Lessee, Operating Lease, Option to Extend Term One 5 years    
Lessee, Operating Lease, Option to Extend Term Two 10 years    
Finance and Operating Lease, Weighted Average Remaining Lease Term 9 months 18 days 1 year 3 months  
Operating Lease, Weighted Average Discount Rate, Percent 7.61% 7.61%  
Operating Lease, Expense $ 344,739 $ 340,799  
Accrued Bonuses 1,100,000 2,200,000  
Stock Options Granted to Management [Member]      
Accrued Bonuses 800,000 800,000  
Paid Out in Cash and Profit Sharing [Member]      
Accrued Bonuses $ 300,000 $ 1,400,000  
Annual Bonus Plan [Member] | Executive Officer [Member]      
Percentage of Individual Bonus Payout Determined by Actual Versus Targeted EBITOI Results 75.00%    
Percentage of Individuals Payout Determined Upon Achievement of Certain Pre-Established Individual Performance Objectives 25.00%    
NTIC China [Member] | Misclassified Products [Member]      
Loss Contingency, Misclassification of Tax Rebate, Percentage     13.00%
Loss Contingency, Repayment Obligations     $ 236,785
Loss Contingency, Penalties     $ 150,000
Loss Contingency Accrual $ 386,785