Note 14 - Changes to Stockholders' Equity - Changes Occurred in Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 01, 2024	May 27, 2023	Jun. 01, 2024	May 27, 2023
Beginning of period			$ 183,441
End of period	$ 171,660		171,660
Net income for the period	(7,201)	$ 2,076	(8,394)	$ 3,521
Amortization of pension costs, net of tax	(15)	(31)	(30)	(63)
Common Stock [Member]
Beginning of period	43,883	44,311	43,842	44,759
Issuance of common stock	98	95	191	187
Purchase and retirement of common stock	(173)	(506)	(225)	(1,046)
End of period	$ 43,808	$ 43,900	$ 43,808	$ 43,900
Beginning of period (in shares)	8,776,349	8,862,137	8,768,221	8,951,839
Issuance of common stock (in shares)	19,629	19,029	38,117	37,410
Purchase and retirement of common stock (in shares)	(34,646)	(101,254)	(45,006)	(209,337)
End of period (in shares)	8,761,332	8,779,912	8,761,332	8,779,912
Additional Paid-in Capital [Member]
Beginning of period	$ 175	$ 0	$ 93	$ 0
End of period	52	0	52	0
Issuance of common stock	(5)	2	(12)	(10)
Purchase and retirement of common stock	(316)	(214)	(425)	(414)
Stock based compensation	198	212	396	424
Retained Earnings [Member]
Beginning of period	136,588	149,611	139,354	150,800
End of period	127,807	149,393	127,807	149,393
Purchase and retirement of common stock	0	(884)	0	(2,097)
Net income for the period	(7,201)	2,076	(8,394)	3,521
Cash dividends declared	(1,580)	(1,410)	(3,153)	(2,831)
AOCI Attributable to Parent [Member]
Beginning of period	(8)	(62)	152	50
End of period	(7)	(108)	(7)	(108)
Amortization of pension costs, net of tax	8	23	15	47
AOCI Attributable to Parent [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning of period	$ (7)	$ (69)	$ (174)	$ (205)