Leases - Future Minimum Lease Payments for Noncancelable Operating and Capital Leases (Detail) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2013
Leases [Abstract]
2014	$ 70
2015	69
2016	67
2017	52
2018	17
Thereafter	9
Total minimum lease payments	284
Less: amounts representing interest	(53)
Net minimum lease payments, Capital Leases	231
2014	2,836
2015	1,701
2016	942
2017	448
2018	41
Thereafter
Total minimum lease payments, Operating Leases	$ 5,968