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Note 3 - Business Combination (Details Textual) - USD ($)
12 Months Ended
Sep. 01, 2021
Aug. 31, 2022
Aug. 31, 2021
Aug. 16, 2022
May 20, 2022
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net, Total   $ 3,951,550 $ 0    
Revolving Credit Facility [Member] | PNC Bank [Member]          
Line of Credit Facility, Maximum Borrowing Capacity $ 5,000,000 7,000,000   $ 7,000,000 $ 5,000,000
Harita-NTI Limited [Member]          
Business Acquisition, Percentage of Voting Interests Acquired 50.00%        
Business Combination, Consideration Transferred, Total $ 6,250,000        
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage 50.00%        
Business Combination, Step Acquisition, Equity Interest in Acquiree, including Subsequent Acquisition, Percentage, Total 100.00%        
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net, Total $ 3,951,550 3,951,550      
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual   9,961,464      
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual   659,794      
Business Combination, Acquisition Related Costs   $ 115,000      
Business Acquisition, Pro Forma Revenue     9,074,240    
Business Acquisition, Pro Forma Net Income (Loss)     $ 1,529,615    
Harita-NTI Limited [Member] | Customer Relationships [Member]          
Acquired Finite-lived Intangible Assets, Weighted Average Discount Rate 15.30%        
Harita-NTI Limited [Member] | Customer Relationships and Assembled Workforce [Member]          
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year) 15 years