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INCENTIVE PLANS AND STOCK-BASED COMPENSATION INCENTIVE PLANS AND STOCK-BASED COMPENSATION (Details 5) (Restricted Stock Units (RSUs) [Member], USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Aug. 27, 2011 | Aug. 28, 2010 | Aug. 27, 2011 years | Aug. 28, 2010 | Nov. 27, 2010
Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award |  |  | The restricted stock unit awards require no payment from the employee. Compensation cost is recorded based on the market price of the stock on the grant date and is recorded equally over the vesting period of four years. During the vesting period, officers and key employees receive compensation equal to the amount of dividends declared on common shares they would have been entitled to receive had the shares been issued. Upon vesting, employees may elect to defer receipt of their shares |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  |  | 4 |  |
Restricted Stock Unit Awards - Shares Vested And Deferred | 103,390 |  | 103,390 |  | 108,800
Pre-tax compensation expense | $ 119 | $ 39 | $ 969 | $ 871 |
Deferred tax benefits | (44) | (5) | (356) | (285) |
Excess tax benefits (expense) associated with tax deductions over (under) the amount of compensation expense recognized in the consolidated condensed financial statements | (40) | (14) | 43 | (75) |
Fair value of restricted stock unit awards on date of grant | 0 | 0 | 1,263 | 1,102 |
Fair value of restricted stock unit awards vested | 0 | 0 | 905 | 742 |
Aggregate compensation cost recorded for periods prior to reporting period related to nonvested stock-based compensation arragements | 1,519 |  | 1,519 |  |
Unrecognized compensation cost related to share-based arrangements which the Company expects to recognize | $ 967 |  | $ 967 |  |
Weighted-average period in years, over which the Company expects to recognize compensation cost related to share-based arrangements |  |  | 2.55 |  |

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