Commitments and Contingencies (Details) (USD $)	3 Months Ended
Nov. 30, 2013	Nov. 30, 2012	Aug. 31, 2013
Commitments and Contingencies
Lease expense related to noncancellable operating leases	$ 283,000	$ 202,000
Future noncancellable minimum rental payments
Remainder of 2014	931,000
2015	1,295,000
2016	1,230,000
2017	642,000
2018	276,000
Thereafter	221,000
Total	4,595,000
Purchase Obligations
Purchase commitments for property, plant and equipment	$ 2,100,000		$ 3,200,000

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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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-Name Statement of Financial Accounting Standard (FAS)

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Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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