Note 14 - Changes to Stockholders' Equity - Changes Occurred in Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2025	Jun. 01, 2024	May 31, 2025	Jun. 01, 2024
Beginning of period			$ 167,327
End of period	$ 166,776		166,776
Net income (loss) for the period	1,918	$ (7,201)	3,772	$ (8,394)
Amortization of pension costs, net of tax	(0)	(15)	(0)	(30)
Common Stock [Member]
Beginning of period	43,462	43,883	43,681	43,842
Issuance of common stock	87	98	166	191
Purchase and retirement of common stock	(139)	(173)	(437)	(225)
End of period	$ 43,410	$ 43,808	$ 43,410	$ 43,808
Beginning of period (in shares)	8,692,134	8,776,349	8,736,046	8,768,221
Issuance of common stock (in shares)	17,454	19,629	33,189	38,117
Purchase and retirement of common stock (in shares)	(27,737)	(34,646)	(87,384)	(45,006)
End of period (in shares)	8,681,851	8,761,332	8,681,851	8,761,332
Additional Paid-in Capital [Member]
Beginning of period	$ 0	$ 175	$ 6	$ 93
End of period	0	52	0	52
Issuance of common stock	(3)	(5)	(1)	(12)
Purchase and retirement of common stock	(163)	(316)	(311)	(425)
Stock based compensation	166	198	306	396
Retained Earnings [Member]
Beginning of period	122,556	136,588	122,847	139,354
End of period	122,597	127,807	122,597	127,807
Purchase and retirement of common stock	(135)	0	(546)	0
Net income (loss) for the period	1,918	(7,201)	3,772	(8,394)
Cash dividends declared	(1,742)	(1,580)	(3,476)	(3,153)
AOCI Attributable to Parent [Member]
Beginning of period	781	(8)	793	152
End of period	769	(7)	769	(7)
Amortization of pension costs, net of tax	(12)	8	(24)	15
AOCI Attributable to Parent [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning of period	$ 0	$ (7)	$ 0	$ (174)