Defined Benefit Pension Plans and Other Postretirement Benefit Plans (Details) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 03, 2019	Aug. 04, 2018	Aug. 03, 2019	Aug. 04, 2018	Feb. 02, 2019
Amortization:
Total other components of net periodic benefit cost	$ (93,000)	$ (29,000)	$ (179,000)	$ (37,000)
Pension Benefits
Components of Net Periodic Benefit Cost
Service cost	163,000	112,000	325,000	225,000
Interest cost	755,000	756,000	1,513,000	1,510,000
Expected return on plan assets	(730,000)	(1,049,000)	(1,461,000)	(2,100,000)
Amortization:
Prior service cost	0	0	0	0
Amortization of losses	69,000	196,000	143,000	385,000
Total other components of net periodic benefit cost	94,000	(97,000)	195,000	(205,000)
Net Periodic Benefit Cost	257,000	15,000	520,000	20,000
Contribution required					$ 0
Other Benefits
Components of Net Periodic Benefit Cost
Service cost	23,000	122,000	45,000	277,000
Interest cost	38,000	57,000	76,000	125,000
Expected return on plan assets	0	0	0	0
Amortization:
Prior service cost	(231,000)	0	(461,000)	0
Amortization of losses	6,000	11,000	11,000	43,000
Total other components of net periodic benefit cost	(187,000)	68,000	(374,000)	168,000
Net Periodic Benefit Cost	$ (164,000)	$ 190,000	$ (329,000)	$ 445,000