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Income Taxes (Narrative) (Details) (USD $)
 12 Months Ended
Aug. 31, 2014
Aug. 31, 2013
Income Tax [Line Items]    
Operating Loss Carryforwards $ 6,400,000 $ 6,200,000
Deferred Tax Assets, Operating Loss Carryforwards   300,000
Operating Loss Carryforwards, Valuation Allowance 200,000 200,000
Tax credit carryforwards 1,914,000 1,631,000
Undistributed Earnings of Foreign Subsidiaries 106,400,000  
Deferred Tax Liability Not Recognized. Undistributed Earnings of Foreign Subsidiaries That May Be Repatriated 11,000,000  
Material interest or penalties included in income tax expense 0 0
Unrecognized tax benefits affected by the resolution of tax examinations or expiring statutes of limitation 200,000  
Foreign Tax Authority [Member]
    
Income Tax [Line Items]    
Tax credit carryforwards $ 1,800,000 $ 1,500,000