Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (1,185,000)	$ (3,731,000)	$ (4,295,000)	$ (9,796,000)
Other comprehensive income before taxes:
Foreign currency translation	(94,000)	177,000	(239,000)	216,000
Pension plans	156,000	206,000	330,000	421,000
Other comprehensive income before taxes	62,000	383,000	91,000	637,000
Tax provision related to items of other comprehensive income	(21,000)		(47,000)
Other comprehensive income, net of tax	41,000	383,000	44,000	637,000
Comprehensive loss	$ (1,144,000)	$ (3,348,000)	$ (4,251,000)	$ (9,159,000)