Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended
	May 02, 2020	May 04, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (41,726,000)	$ (3,081,000)
Other comprehensive income before taxes:
Foreign currency translation	(34,000)	(24,000)
Pension plans	242,000	201,000
Other comprehensive income before taxes	208,000	177,000
Tax provision related to items of other comprehensive income		(51,000)
Other comprehensive income (loss), net of tax	208,000	126,000
Comprehensive loss	$ (41,518,000)	$ (2,955,000)