Note 9 - Accounting for Share-based Compensation (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Nov. 30, 2024	Dec. 02, 2023	Dec. 03, 2022
Share-Based Payment Arrangement, Expense	$ 21,914	$ 19,911	$ 24,368
Fair Value Options Granted During Period Value Share-based Compensation	13,214	10,577	5,400
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 25,258	8,015	16,877
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Year)	5 years 3 months 18 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value	$ 99,352
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in shares)	3,756,728
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term (Year)	4 years 7 months 6 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value	$ 96,416
Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised	35,927	14,619	30,122
Share-Based Payment Arrangement, Exercise of Option, Tax Benefit	6,114	$ 1,885	$ 3,687
Total Fair Value of Nonvested Restricted Stock	$ 29,250
Repurchased Restricted Stock Shares (in shares)	100,560	37,715	55,081
Non Employee Directors [Member]
Deferred Compensation Plan, Matching Percentage	10.00%
Deferred Compensation Arrangement with Individual, Discretionary Awards, Employer Contribution Units Paid (in shares)	13,926	17,580	17,937
Deferred Compensation Arrangement with Individual, Employer Matches Contribution Fair Value	$ 182	$ 172	$ 172
Deferred Compensation Arrangement with Individual, Discretionary Awards Employer Contribution, Fair Value	$ 1,200	1,200	1,080
Employees [Member]
Deferred Compensation Plan, Matching Percentage	10.00%
Deferred Compensation Arrangement with Individual, Employer Matches Contribution Fair Value	$ 78	79	86
2020 Master Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)	2,854,679
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 9,499
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year 1 month 6 days
Share-Based Payment Arrangement, Option [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	1 year
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	33.30%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	10 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years
Share-Based Payment Arrangement, Exercise of Option, Tax Benefit	$ 4,237	1,396	2,569
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$ 17,027	$ 6,101	$ 8,062
Restricted Stock [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	1 year
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	33.30%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	3 years
Restricted Stock Units (RSUs) [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 9,944
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	10 months 24 days

The fair value of the discretionary award amount contributed into the deferred compensation arrangement.

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Discretionary awards included in the company's match for deferred compensation arrangement.

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The fair value of the matched amount into the deferred compensation fund established for purposes of future disbursements to the individual in accordance with the terms and understanding of the deferred compensation arrangement.

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

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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Amount of cash inflow from issuance of shares under share-based payment arrangement. Includes, but is not limited to, option exercised.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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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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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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Percentage of vesting of award under share-based payment arrangement.

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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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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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