BENEFIT PLANS, (Net periodic benefit cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Components of net periodic benefit cost [Abstract]
Employer service cost	$ 350	$ 210	$ 360
Interest cost	1,566	1,692	1,723
Expected return on plan assets	(2,195)	(2,134)	(2,237)
Net loss amortization	774	399	610
Loss on pension settlement	748	0	0
Net pension cost	$ 1,243	$ 167	$ 456