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Retirement Plans (Tables)
3 Months Ended
Apr. 30, 2019
Retirement Benefits [Abstract]  
Schedule of Defined Benefit Plans Disclosures
The net periodic pension cost (income) for the Pension Plan and the VIP Plan for the three months ended April 30, 2019 and 2018 were as follows (in thousands):
 
Combined Employee Retirement Plans
 
Three Months Ended
 
4/30/2019
 
4/30/2018
 
 
 
 
Service cost
$

 
$

Interest cost
355

 
355

Expected return on plan assets
(343
)
 
(407
)
Plan settlement

 

Amortization of prior service cost

 

Recognized net actuarial (gain) loss
176

 
172

Benefit cost
$
188

 
$
120