BENEFIT PLANS (Details) (USD $)	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2011	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
BENEFIT PLANS
Minimum age of employee to qualify for qualified savings plan				21 years
Minimum service period of employee to qualify for qualified savings plan				1 year
Pension plan expense
Interest cost		$ 619,000	$ 627,000	$ 1,238,000	$ 1,278,000
Expected return on plan assets		(704,000)	(721,000)	(1,408,000)	(1,372,000)
Amortization of net loss		566,000	405,000	1,133,000	756,000
Net periodic benefit cost		481,000	311,000	963,000	662,000
Discretionary contribution to defined benefit pension plan	$ 3,000,000