Note 7 - Impairment of Long-Lived Assets, Discontinued Operations and Property Held for Sale (Details) - Discontinued Operations (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
Discontinued Operations [Abstract]
Discontinued operating losses			$ (715)	$ (1,217)
Impairments			(90)	(762)
Losses			(2)lub_GainsLossesOnImpairment	(6)lub_GainsLossesOnImpairment
Net loss			(807)	(1,985)
Income tax benefit from discontinued operations			298	517
Loss from discontinued operations	$ (176)	$ (12)	$ (509)	$ (1,468)
Effect on EPS from discontinued operations—basic (in Dollars per share)	$ (0.01)		$ (0.02)	$ (0.05)

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

+ References+ Details

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 9: http://www.xbrl.org/2003/role/presentationRef

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Reference 10: http://www.xbrl.org/2003/role/presentationRef

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+ Details

- Definition

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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