Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended
	May 05, 2018	Apr. 29, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (3,110,000)	$ (6,065,000)
Other comprehensive income before taxes:
Foreign currency translation	(145,000)	39,000
Pension plans	174,000	215,000
Other comprehensive income before taxes	29,000	254,000
Tax provision related to items of other comprehensive income	(26,000)
Other comprehensive income, net of tax	3,000	254,000
Comprehensive loss	$ (3,107,000)	$ (5,811,000)