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Employee Retirement Benefits (Tables)
 12 Months Ended
Jan. 31, 2019
Retirement Benefits [Abstract]  
The accumulated benefit obligation The accumulated benefit obligation is as follows:
 
 
For the years ended January 31,
 
 
2019
 
2018
Benefit obligation at beginning of year
 
$
8,571

 
$
8,416

Service cost
 
28

 
74

Interest cost
 
316

 
312

Actuarial (gain) loss and assumption changes
 
(473
)
 
112

Retiree benefits paid
 
(441
)
 
(343
)
Benefit obligation at end of year
 
$
8,001


$
8,571
Schedule of pre-tax accumulated other comprehensive income related to benefit obligation and net periodic benefit cost not yet recognized The following tables set forth the plan's pre-tax adjustment to accumulated other comprehensive income/loss:
 
 
For the years ended January 31,
 
 
2019
 
2018
Amounts not yet recognized in net periodic benefit cost:
 
 
 
 
Net actuarial loss
 
$
2,114

 
$
2,714

Prior service cost
 
(413
)
 
(572
)
Total pre-tax accumulated other comprehensive loss
 
$
1,701

 
$
2,142

 
 
 
 
 
Pre-tax accumulated other comprehensive loss - beginning of year related to benefit obligation
 
$
2,142

 
$
1,967

Reclassification adjustments recognized in benefit cost:
 
 
 
 
Recognized net (loss)
 
(128
)
 
(96
)
Amortization of prior service cost
 
160

 
159

Amounts recognized in AOCI during the year:
 
 
 
 
Net actuarial (gain) loss
 
(473
)
 
112

Pre-tax accumulated other comprehensive loss - end of year related to benefit obligation
 
$
1,701

 
$
2,142
The liability and expense reflected in the balance sheet and income statement The liability and net periodic benefit cost reflected in the Consolidated Balance Sheets and Consolidated Statements of Income and Comprehensive Income were as follows:
 
 
For the years ended January 31,
 
 
2019
 
2018
Beginning liability balance
 
$
8,571

 
$
8,416

Net periodic benefit cost
 
312

 
323

Other comprehensive (gain) loss
 
(441
)
 
175

Total recognized in net periodic benefit cost and other comprehensive income
 
(129
)
 
498

Retiree benefits paid
 
(441
)
 
(343
)
Ending liability balance
 
$
8,001

 
$
8,571

 
 
 
 
 
Current portion in accrued liabilities
 
$
323

 
$
307

Long-term portion in other liabilities
 
$
7,678

 
$
8,264

 
 
 
 
 
Assumptions used to calculate benefit obligation:
 
 
 
 
Discount rate
 
4.25
%
 
3.75
%
Rate of compensation increase
 
4.00
%
 
4.00
%
Health care cost trend rates:
 
 
 
 
Health care cost trend rate assumed for next year
 
6.33
%
 
6.50
%
Ultimate health care cost trend rate
 
4.50
%
 
4.50
%
Year that the rate reaches the ultimate trend rate
 
2030

 
2030

Assumptions used to calculated the net periodic benefit cost:
 
 
 
 
Discount rate
 
3.75
%
 
4.00
%
Rate of compensation increase

 
4.00
%
 
4.00
%
Schedule of future postretirement other pension benefit payments The following postretirement other than pension benefit payments, which reflect expected future service as appropriate, are expected to be paid:
 
 
2020
 
2021
 
2022
 
2023
 
2024
 
2025 - 2029
Expected postretirement medical and other benefit payments
 
$
330

 
$
341

 
$
349

 
$
352

 
$
354

 
$
1,888