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Significant Accounting Policies and Significant Recent Accounting Pronouncements (Details) - USD ($)
3 Months Ended 9 Months Ended
May 31, 2023
May 31, 2022
May 31, 2023
May 31, 2022
Aug. 31, 2022
Significant Accounting Policies and Significant Recent Accounting Pronouncements          
Allowance for doubtful accounts $ 151,000   $ 151,000   $ 164,000
Inventories 1,784,000   1,784,000   1,697,000
Fair value estimate not practicable securities sold not yet purchases 0   0   0
Company's obligations 0   0   0
Right of use assets 10,390,000   10,390,000   $ 10,389,000 [1]
Lease liabilities $ 10,600,000   $ 10,600,000    
Potentially dilutive common shares 40,000 40,000 40,000 40,000  
Convertible preferred stock (in shares) 36,000 36,000 36,000 36,000  
Exchange rate on foreign currency translation and transactions     $ 0.74 $ 0.79  
Percentage of revenue per entity, Maximum 10.00% 10.00% 10.00% 10.00%  
Canada          
Significant Accounting Policies and Significant Recent Accounting Pronouncements          
Exchange rate on foreign currency translation and transactions     $ 0.74 $ 0.79  
Sales revenue, net | Customer concentration risk | Non-US          
Significant Accounting Policies and Significant Recent Accounting Pronouncements          
Percentage of concentrations risk     10.00% 12.00%  
Sales revenue, net | Customer concentration risk | Canada          
Significant Accounting Policies and Significant Recent Accounting Pronouncements          
Percentage of concentrations risk     31.00% 31.00%  
Sales revenue, net | Customer concentration risk | Asia          
Significant Accounting Policies and Significant Recent Accounting Pronouncements          
Percentage of concentrations risk     45.00% 47.00%  
Accounts receivable | Customer concentration risk | Non-US          
Significant Accounting Policies and Significant Recent Accounting Pronouncements          
Percentage of concentrations risk     11.00% 15.00%  
[1] Derived from the Company’s audited financial statements included in its Form 10-K for the year ended August 31, 2022 filed with the U.S. Securities and Exchange Commission on November 4, 2022.