Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 29, 2021	May 30, 2020	May 29, 2021	May 30, 2020
Net income (loss)	$ 5,974	$ (20,352)	$ 9,985	$ (19,142)
Other comprehensive income:
Amortization associated with awards	36	31	72	63
Other comprehensive income, net of tax	35	25	70	49
Total comprehensive income (loss)	6,009	(20,327)	10,055	(19,093)
Pension Plan [Member]
Other comprehensive income:
Income taxes related to Retirement Plan	(9)	(8)	(18)	(16)
Supplemental Employee Retirement Plan [Member]
Other comprehensive income:
Amortization associated with awards	11	2	22	3
Income taxes related to Retirement Plan	$ (3)	$ 0	$ (6)	$ (1)