Note 12 - Capital Stock and Stock Compensation (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Nov. 29, 2025	Nov. 30, 2024	Nov. 25, 2023	Mar. 10, 2021
Payment, Tax Withholding, Share-Based Payment Arrangement	$ 136	$ 161	$ 109
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount	21	9	(10)
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount	$ (21)	$ (9)	$ 10
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)	26,970,000	30,436,000	28,063,000
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)	47,409
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares)	9,835	10,360	5,985
Payment, Tax Withholding, Share-Based Payment Arrangement	$ 136	$ 161	$ 109
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount	21	9	(10)
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount	(21)	$ (9)	$ 10
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 340
Restricted Stock [Member] \| Employees [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)	29,300
Restricted Stock [Member] \| Director [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)	18,109
Plan 2021 [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares)				500,000
Employee Stock Purchase Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent	85.00%
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)	16,991

Aggregate number of common shares reserved for future issuance.

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