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Significant Accounting Policies (Details Textual)
12 Months Ended
Aug. 31, 2018
USD ($)
$ / shares
shares
Aug. 31, 2018
USD ($)
¥ / shares
shares
Aug. 31, 2017
USD ($)
$ / shares
shares
Aug. 31, 2017
USD ($)
¥ / shares
shares
Significant Accounting Policies [Line Items]        
Allowance for Doubtful Accounts Receivable $ 111,000 $ 111,000 $ 111,000 $ 111,000
Inventory Valuation Reserves $ 1,376,000 $ 1,376,000 $ 1,220,000 $ 1,220,000
Percentage of Revenue Per Entity, Maximum 10.00%   10.00%  
Concentration Risk, Percentage 100.00%   100.00%  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares 40,000   40,000  
Convertible Preferred Stock, Shares Issued upon Conversion | shares 36,000 36,000 36,000 36,000
Fair Value Estimate Not Practicable Securities Sold Not Yet Purchasess $ 933,000 $ 933,000 $ 707,000 $ 707,000
Restricted Cash and Cash Equivalents, Current $ 933,000 $ 933,000 $ 707,000 $ 707,000
Exchange Rate On Foreign Currency Translation And Transactions | (per share) $ 0.79 $ 0.77 $ 0.76 $ 0.82
Advertising Expense $ 403,000   $ 243,000  
Shipping Handling And Transportation Cost $ 3,293,000   $ 2,760,000  
Sales Revenue, Net [Member]        
Significant Accounting Policies [Line Items]        
Concentration Risk, Percentage 9.00%   9.00%  
Sales Revenue, Net [Member] | Canada [Member]        
Significant Accounting Policies [Line Items]        
Concentration Risk, Percentage 4.00%   4.00%  
Accounts Receivable [Member]        
Significant Accounting Policies [Line Items]        
Concentration Risk, Percentage 11.00%   9.00%