Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 01, 2020	Aug. 03, 2019	Aug. 01, 2020	Aug. 03, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (10,714,000)	$ 38,000	$ (52,440,000)	$ (3,043,000)
Other comprehensive income before taxes:
Foreign currency translation	(5,000)	(59,000)	(39,000)	(83,000)
Pension plans	253,000	191,000	495,000	392,000
Other comprehensive income before taxes	248,000	132,000	456,000	309,000
Tax provision related to items of other comprehensive income		(30,000)		(81,000)
Other comprehensive income (loss), net of tax	248,000	102,000	456,000	228,000
Comprehensive income (loss)	$ (10,466,000)	$ 140,000	$ (51,984,000)	$ (2,815,000)