Note 6 - Accounting for Share-based Compensation (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 01, 2019	Jun. 02, 2018	Jun. 01, 2019	Jun. 02, 2018
Fair Value Options Granted During Period Value Share-based Compensation	$ 83	$ 1,392	$ 9,413	$ 9,037
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	471	1,172	1,382	1,811
Proceeds from Stock Options Exercised	771	$ 1,625	1,837	$ 2,387
Total Fair Value of Nonvested Restricted Stock	$ 22,531		$ 22,531
Repurchased Restricted Stock Shares	2,746	3,645	60,666	66,936
Deferred Compensation Plan, Matching Percentage			10.00%
Share-based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 10,059		$ 10,059
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition			1 year 73 days
Restricted Stock Units (RSUs) [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	12,458		$ 12,458
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition			1 year 73 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	435	$ 577	$ 8,281	$ 8,477
Selling, General and Administrative Expenses [Member]
Share-based Payment Arrangement, Expense	$ 8,266	$ 4,848	$ 14,172	$ 10,434

Percent matched on deferred compensation investment.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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