Note 11 - Earnings Per Share - Reconciliation of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	May 27, 2023	May 28, 2022	May 27, 2023	May 28, 2022
Basic earnings per share - continuing operations	$ 2,076	$ 7,743	$ 3,521	$ 12,034
Basic earnings per share - continuing operations (in shares)	8,810,178	9,521,085	8,839,029	9,636,813
Income from continuing operations (in dollars per share)	$ 0.24	$ 0.81	$ 0.40	$ 1.25
Options and restricted shares (in shares)	11,853	12,938	18,881	2,917
Diluted earnings per share - continuing operations	$ 2,076	$ 7,743	$ 3,521	$ 12,034
Diluted earnings per share - continuing operations (in shares)	8,822,031	9,534,023	8,857,910	9,639,730
Income from continuing operations (in dollars per share)	$ 0.24	$ 0.81	$ 0.40	$ 1.25
Basic loss per share - discontinued operations		$ 39,375		$ 40,657
Basic loss per share - discontinued operations (in dollars per share)		$ 4.14		$ 4.22
Options and restricted shares (in dollars per share)		$ (0.01)
Diluted loss per share - discontinued operations		$ 39,375		$ 40,657
Diluted loss per share - discontinued operations (in dollars per share)		$ 4.13		$ 4.22
Discontinued Operations [Member]
Basic earnings per share - continuing operations (in shares)		9,521,085
Options and restricted shares (in shares)		12,938
Diluted earnings per share - continuing operations (in shares)		9,534,023