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SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
3 Months Ended 12 Months Ended
Aug. 31, 2021
Aug. 31, 2020
May 31, 2021
Jan. 22, 2021
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Retained Earnings (Accumulated Deficit) $ (32,088,916)   $ (30,546,335)  
Shelf Registration Statement, Maximum Authorized Common Stock Issuance, Value       $ 15,000,000
Cash, Uninsured Amount $ 4,790,000      
Concentration Risk, Percentage 100.00%      
Threshold Period Past Due for Write-off of Trade Accounts Receivable 90 days      
Allowance for Credit Loss, Receivable, Other, Current $ 743,000      
Prepaid Expense and Other Assets 315,000   370,000  
Inventory Write-down 179,000      
Other Inventory, Gross 211,000      
Inventory Valuation Reserves 1,797,000   1,617,000  
Inventory, LIFO Reserve 1,683,000      
Depreciation, Depletion and Amortization 27,809 $ 26,732    
Amortization of Intangible Assets $ 6,913 5,838    
Equity Method Investment, Ownership Percentage 6.00%      
Proceeds from Stock Options Exercised $ 3,895 14,900    
Other Research and Development Expense 440,000 $ 712,000    
Deferred Tax Assets, Valuation Allowance $ 6,226,000   $ 5,904,000  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares) 2,081,116 1,925,750    
Share-based Payment Arrangement, Option [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in Shares) 1,500      
Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price (in Dollars per share) $ 2.68      
Proceeds from Stock Options Exercised $ 3,895      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares) 24,000      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share) $ 4.25      
Proceeds from Stock Options Granted $ 14,900      
Distribution Rights [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Finite-Lived Intangible Asset, Useful Life 18 years      
Purchased Technology Rights [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Finite-Lived Intangible Asset, Useful Life 10 years      
Patents [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Finite-Lived Intangible Asset, Useful Life 20 years      
Minimum [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Property, Plant and Equipment, Useful Life 5 years      
Maximum [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Property, Plant and Equipment, Useful Life 10 years      
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Two Distributors [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Concentration Risk, Percentage 60.00% 40.00%    
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Two Distributors [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Concentration Risk, Percentage 77.00%   73.00%  
Supplier Concentration Risk [Member] | Cost of Goods and Service, Product and Service Benchmark [Member] | One Vendor [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Concentration Risk, Percentage 17.00%      
Supplier Concentration Risk [Member] | Cost of Goods and Service, Product and Service Benchmark [Member] | Two Vendors [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Concentration Risk, Percentage   64.00%    
Supplier Concentration Risk [Member] | Accounts Payable [Member] | One Vendor [Member]        
SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]        
Concentration Risk, Percentage 25.00%   17.00%