Note 11 - Earnings Per Share (Details) - Components of Basic and Diluted Net Income Per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
May 06, 2015	May 07, 2014	May 06, 2015	May 07, 2014
Numerator:
Income (loss) from continuing operations (in Dollars)	$ 2,529	$ 1,741	$ (1,516)	$ (532)
Loss from discontinued operations (in Dollars)	(176)	(12)	(509)	(1,468)
Net income (loss) (in Dollars)	$ 2,353us-gaap_NetIncomeLoss	$ 1,729us-gaap_NetIncomeLoss	$ (2,025)us-gaap_NetIncomeLoss	$ (2,000)us-gaap_NetIncomeLoss
Denominator:
Denominator for basic earnings per share – weighted-average shares (in Shares)	29,009	28,791	28,940	28,777
Effect of potentially dilutive securities:
Employee and non-employee stock options (in Shares)	102	685
Denominator for earnings per share assuming dilution (in Shares)	29,111	29,476	28,940	28,777
Income (loss) per share from continuing operations:
Basic	$ 0.09	$ 0.06	$ (0.05)	$ (0.02)
Assuming dilution	$ 0.09	$ 0.06	$ (0.05)	$ (0.02)
Loss per share from discontinued operations:
Basic	$ (0.01)		$ (0.02)	$ (0.05)
Assuming dilution	$ (0.01)		$ (0.02)	$ (0.05)
Net income (loss) per share:
Basic	$ 0.08us-gaap_EarningsPerShareBasic	$ 0.06us-gaap_EarningsPerShareBasic	$ (0.07)us-gaap_EarningsPerShareBasic	$ (0.07)us-gaap_EarningsPerShareBasic
Assuming dilution	$ 0.08us-gaap_EarningsPerShareDiluted	$ 0.06us-gaap_EarningsPerShareDiluted	$ (0.07)us-gaap_EarningsPerShareDiluted	$ (0.07)us-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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Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.

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Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.

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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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