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Represents the the number of share-based stock plans.

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No definition available.

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A premium of additional restricted stock, as a percentage, granted when opting to receive stock in lieu of cash.

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No definition available.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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No definition available.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Percentage of vesting of share-based compensation awards.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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No definition available.

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Number of options outstanding, including both vested and non-vested options.

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Note 10 - Share-Based Compensation (Details) (USD $)	9 Months Ended
Note 10 - Share-Based Compensation (Details) (USD $)	May 06, 2015	May 07, 2014	Aug. 27, 2014
Note 10 - Share-Based Compensation (Details) [Line Items]
Number of Stock Plans	2lub_NumberOfStockPlans
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	628,060
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	1,313,246		800,754
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 255 days
Restricted Stock Units (RSUs) [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options (in Dollars)	900,000
General and Administrative Expense [Member] \| Non Employee Directors Stock Plan [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense (in Dollars)	472,000	441,000
General and Administrative Expense [Member] \| Employee Stock Plan [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense (in Dollars)	543,000	$ 476,000
Non Employee Directors Stock Plan [Member] \| Share-based Compensation Award, Tranche One [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	100.00%
Non Employee Directors Stock Plan [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	1,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	800,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period	100,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	400,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	0
Restricted Stock and Unit Awards Granted to Named Executive Officers, Percentage	20.00%
Employee Stock Plan [Member] \| Executive Officer [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Employee Stock Plan [Member] \| Share-based Compensation Award, Tranche One [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	50.00%
Employee Stock Plan [Member] \| Share-based Compensation Award, Tranche Two [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	25.00%
Employee Stock Plan [Member] \| Share-based Compensation Award, Tranche Three [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	25.00%
Employee Stock Plan [Member]
Note 10 - Share-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	2,600,000
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	5,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period	3,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	400,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years	6 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	1,313,248
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit (in Dollars per share)	3.44
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit (in Dollars per share)	11.10