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Pension Plan (Tables)
6 Months Ended
Jul. 29, 2017
Retirement Benefits [Abstract]  
Components of pension cost
We sponsor a frozen defined benefit pension plan. The components of net periodic pension cost were as follows (in thousands):
 
Three Months Ended
 
Six Months Ended
 
July 29, 2017
 
July 30, 2016
 
July 29, 2017
 
July 30, 2016
Employer service cost
$
120

 
$
99

 
$
245

 
$
170

Interest cost
363

 
400

 
727

 
798

Expected return on plan assets
(412
)
 
(422
)
 
(815
)
 
(875
)
Net loss amortization
213

 
295

 
424

 
448

Net periodic pension cost
$
284


$
372

 
$
581


$
541