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Future Minimum Lease Commitments (Detail) (USD $)
In Thousands, unless otherwise specified
Aug. 31, 2013
Future Minimum Payments Under Non-Cancelable Operating Leases With Initial Terms Of One-Year Or More [Line Items]  
Remaining 2014 $ 877
2015 878
2016 597
2017 158
2018 120
Thereafter $ 266