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Significant Accounting Policies (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Nov. 30, 2015
Nov. 30, 2014
Aug. 31, 2015
Significant Accounting Policies [Line Items]      
Pledged Financial Instruments, Not Separately Reported, Securities for Letter of Credit Facilities $ 79,000   $ 83,000
Allowance for Doubtful Accounts Receivable 111,000   111,000
Inventory Valuation Reserves $ 1,135,000   $ 1,105,000
Exchange Rate on Foreign Currency Translation and Transactions $ 0.76 $ 0.89  
Sales Revenue, Net [Member]      
Significant Accounting Policies [Line Items]      
Concentration Risk, Percentage 8.00% 7.00%  
Accounts Receivable [Member]      
Significant Accounting Policies [Line Items]      
Concentration Risk, Percentage 10.00%   11.00%