Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 03, 2019	Aug. 04, 2018	Aug. 03, 2019	Aug. 04, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 38,000	$ (1,185,000)	$ (3,043,000)	$ (4,295,000)
Other comprehensive income before taxes:
Foreign currency translation	(59,000)	(94,000)	(83,000)	(239,000)
Pension plans	191,000	156,000	392,000	330,000
Other comprehensive income before taxes	132,000	62,000	309,000	91,000
Tax provision related to items of other comprehensive income	(30,000)	(21,000)	(81,000)	(47,000)
Other comprehensive income, net of tax	102,000	41,000	228,000	44,000
Comprehensive income (loss)	$ 140,000	$ (1,144,000)	$ (2,815,000)	$ (4,251,000)