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Pension Plan (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Aug. 01, 2015
Aug. 02, 2014
Aug. 01, 2015
Aug. 02, 2014
Compensation and Retirement Disclosure [Abstract]        
Employer service cost $ 87 $ 54 $ 174 $ 106
Interest cost 395 423 783 846
Expected return on plan assets (549) (535) (1,097) (1,068)
Net loss amortization 208 99 387 199
Net periodic pension cost $ 141 $ 41 $ 247 $ 83