Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended
	May 04, 2019	May 05, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (3,081,000)	$ (3,110,000)
Other comprehensive income before taxes:
Foreign currency translation	(24,000)	(145,000)
Pension plans	201,000	174,000
Other comprehensive income before taxes	177,000	29,000
Tax provision related to items of other comprehensive income	(51,000)	(26,000)
Other comprehensive income, net of tax	126,000	3,000
Comprehensive loss	$ (2,955,000)	$ (3,107,000)