Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Nov. 26, 2021	9,762,125
Balance at Nov. 26, 2021	$ 48,811	$ 113	$ 115,631	$ (1,823)	$ 162,732
Net income (loss)	0	0	65,345	0	65,345
Foreign currency translation adjustments, net of tax	0	0	0	(204)	(204)
Amortization of defined benefit plan costs, net of tax	0	0	0	192	192
Actuarial adjustments to defined benefit plans, net of tax	0	0	0	1,885	1,885
Regular dividends	0	0	(5,668)	0	(5,668)
Special dividend	$ 0	0	(14,494)	0	(14,494)
Issuance of common stock (in shares)	59,024
Issuance of common stock	$ 295	129	0	0	424
Purchase and retirement of common stock (in shares)	(869,310)
Purchase and retirement of common stock	$ (4,347)	(780)	(10,014)	0	(15,141)
Stock-based compensation	$ 0	538	0	0	538
Balance (in shares) at Nov. 26, 2022	8,951,839
Balance at Nov. 26, 2022	$ 44,759	0	150,800	50	195,609
Net income (loss)	0	0	(3,171)	0	(3,171)
Foreign currency translation adjustments, net of tax	0	0	0	(282)	(282)
Amortization of defined benefit plan costs, net of tax	0	0	0	68	68
Actuarial adjustments to defined benefit plans, net of tax	0	0	0	316	316
Regular dividends	$ 0	0	(5,982)	0	(5,982)
Issuance of common stock (in shares)	74,421
Issuance of common stock	$ 373		0	0	318
Purchase and retirement of common stock (in shares)	(258,039)
Purchase and retirement of common stock	$ (1,290)	(701)	(2,293)	0	(4,284)
Stock-based compensation	$ 0	849	0	0	849
Adjustments to Additional Paid in Capital, Stock Issuance		(55)
Adjustments to Additional Paid in Capital, Stock Issuance		(55)
Balance (in shares) at Nov. 25, 2023	8,768,221
Balance at Nov. 25, 2023	$ 43,842	93	139,354	152	183,441
Net income (loss)	0	0	(9,695)	0	(9,695)
Foreign currency translation adjustments, net of tax	0	0	0	486	486
Amortization of defined benefit plan costs, net of tax	0	0	0	29	29
Actuarial adjustments to defined benefit plans, net of tax	0	0	0	126	126
Regular dividends	$ 0	0	(6,654)	0	(6,654)
Issuance of common stock (in shares)	79,490
Issuance of common stock	$ 397		0	0	371
Purchase and retirement of common stock (in shares)	(111,665)
Purchase and retirement of common stock	$ (558)	(865)	(158)	0	(1,581)
Stock-based compensation	$ 0	804	0	0	804
Adjustments to Additional Paid in Capital, Stock Issuance		(26)
Adjustments to Additional Paid in Capital, Stock Issuance		(26)
Balance (in shares) at Nov. 30, 2024	8,736,046
Balance at Nov. 30, 2024	$ 43,681	$ 6	$ 122,847	$ 793	$ 167,327