Discontinued Operations (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
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from Sale of Productive Assets     $ 4,738 $ 8,008
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax     3,331 0
Net sales 83 6,929 1,372 15,396
Income (loss) from discontinued operations, net of tax 347 (282) 3,002 (279)
Australia rotational molding [Member]
       
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from Sale of Productive Assets     3,000  
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax     $ 3,300