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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Income Tax [Line Items]    
Operating loss carryforwards $ 1,300 $ 6,400
Net deferred tax asset 100 300
Operating loss carryforwards, valuation allowance 100 200
Tax credit carryforwards 2,040 1,914
Undistributed earnings of foreign subsidiaries 115,400  
Deferred tax liability not recognized. Undistributed earnings of foreign subsidiaries that may be repatriated 10,700  
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 300  
Foreign Tax Authority [Member]    
Income Tax [Line Items]    
Tax credit carryforwards $ 1,900 $ 1,800