Asset Impairments (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Feb. 28, 2014
Feb. 28, 2013
Feb. 28, 2014
Feb. 28, 2013
Property, Plant and Equipment        
Asset impairment $ 104 $ 0 $ 104 $ 498
Oyonnax, France [Member]
       
Property, Plant and Equipment        
Asset impairment     100 500
Italy Plan [Member]
       
Property, Plant and Equipment        
Proceeds from Sale of Property, Plant, and Equipment $ 1,500   $ 1,500