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Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Feb. 28, 2015	Mar. 01, 2014	Feb. 28, 2015	Mar. 01, 2014
Earnings Per Share [Abstract]
Net income	$ 427us-gaap_NetIncomeLoss	$ 1,971us-gaap_NetIncomeLoss	$ 2,255us-gaap_NetIncomeLoss	$ 3,690us-gaap_NetIncomeLoss
Basic weighted average shares outstanding	16,908us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	16,717us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	16,889us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	16,640us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Stock options and other share-based awards	178us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	209us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	200us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	252us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Diluted weighted average shares outstanding	17,086us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	16,926us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	17,089us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	16,892us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Net income per share, Basic	$ 0.03us-gaap_EarningsPerShareBasic	$ 0.12us-gaap_EarningsPerShareBasic	$ 0.13us-gaap_EarningsPerShareBasic	$ 0.22us-gaap_EarningsPerShareBasic
Net income per share, Diluted	$ 0.02us-gaap_EarningsPerShareDiluted	$ 0.12us-gaap_EarningsPerShareDiluted	$ 0.13us-gaap_EarningsPerShareDiluted	$ 0.22us-gaap_EarningsPerShareDiluted

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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