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Pension and Other Postretirement Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

Net Actuarial

Prior Service

Loss (Gain)

Cost (Credit)

Total

    

2019

    

2018

    

2017

    

2019

    

2018

    

2017

    

2019

    

2018

    

2017

(In thousands)

Employee Retirement Plan

$

2,273

$

3,238

$

6,166

$

$

$

$

2,273

$

3,238

$

6,166

Other Postretirement Benefit Plans

 

(265)

 

35

 

1,223

 

(198)

 

(283)

 

(368)

 

(463)

 

(248)

 

855

Outside Directors Plan

 

(380)

 

(566)

 

(472)

 

 

 

12

 

(380)

 

(566)

 

(460)

Total

$

1,628

$

2,707

$

6,917

$

(198)

$

(283)

$

(356)

$

1,430

$

2,424

$

6,561

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]

    

Net Actuarial

    

Prior Service

    

Expense

Loss (Gain)

Cost (Credit)

(Benefit)

(In thousands)

Employee Retirement Plan

$

444

$

$

444

Other Postretirement Benefit Plans

 

 

(85)

 

(85)

Outside Directors Plan

 

(55)

 

 

(55)

Total

$

389

$

(85)

$

304

Schedule of Net Funded Status [Table Text Block]

    

2019

    

2018

(In thousands)

Change in benefit obligation:

 

  

 

  

Projected benefit obligation at beginning of year

$

20,344

$

23,605

Interest cost

 

797

 

781

Actuarial loss (gain)

 

2,265

 

(2,389)

Benefits paid

 

(963)

 

(1,653)

Projected benefit obligation at end of year

 

22,443

 

20,344

Change in plan assets:

 

  

 

  

Market value of assets at beginning of year

 

22,419

 

22,702

Actual return on plan assets

 

4,049

 

1,370

Benefits paid

 

(963)

 

(1,653)

Market value of plan assets at end of year

 

25,505

 

22,419

Accrued pension asset included in other assets

$

3,062

$

2,075

    

2019

    

2018

(In thousands)

Change in benefit obligation:

 

  

 

  

Projected benefit obligation at beginning of year

$

8,518

$

9,104

Service cost

 

280

 

350

Interest cost

 

341

 

307

Actuarial gain

 

(301)

 

(1,155)

Benefits paid

 

(76)

 

(88)

Projected benefit obligation at end of year

 

8,762

 

8,518

Change in plan assets:

 

  

 

  

Market value of assets at beginning of year

 

 

Employer contributions

 

76

 

88

Benefits paid

 

(76)

 

(88)

Market value of plan assets at end of year

 

 

Accrued pension cost included in other liabilities

$

8,762

$

8,518

    

2019

    

2018

(In thousands)

Change in benefit obligation:

 

  

 

  

Projected benefit obligation at beginning of year

$

2,265

$

2,425

Service cost

 

39

 

42

Interest cost

 

86

 

78

Actuarial (gain) loss

 

44

 

(184)

Benefits paid

 

(144)

 

(96)

Projected benefit obligation at end of year

 

2,290

 

2,265

Change in plan assets:

 

  

 

  

Market value of assets at beginning of year

 

 

Employer contributions

 

144

 

96

Benefits paid

 

(144)

 

(96)

Market value of plan assets at end of year

 

 

Accrued pension cost included in other liabilities

$

(2,290)

$

(2,265)

Schedule of Assumptions Used [Table Text Block]

    

2019

    

2018

 

Weighted average discount rate

 

3.00

%  

4.06

%

Rate of increase in future compensation levels

 

n/a

 

n/a

    

2019

    

2018

    

2017

 

Weighted average discount rate

 

4.06

%  

3.42

%  

3.88

%

Rate of increase in future compensation levels

 

n/a

 

n/a

 

n/a

Expected long-term rate of return on assets

 

5.25

%  

7.00

%  

7.00

%

    

2019

    

2018

 

Discount rate

 

3.00

%  

4.06

%

Rate of increase in health care costs

 

  

  

  

Initial

 

7.50

%  

7.00

%

Ultimate (year 2023)

 

5.00

%  

5.00

%

Annual rate of salary increase for life insurance

 

n/a

  

n/a

    

2019

    

2018

    

2017

 

Rate of return on plan assets

 

n/a

 

n/a

 

n/a

Discount rate

 

4.06

%  

3.42

%  

3.88

%

Rate of increase in health care costs

 

  

 

  

 

  

Initial

 

7.00

%  

7.00

%  

8.00

%

Ultimate (year 2023)

 

5.00

%  

5.00

%  

5.00

%

Annual rate of salary increase for life insurance

 

n/a

 

n/a

 

n/a

    

2019

    

2018

    

2017

 

Weighted average discount rate for the benefit obligation

 

3.00

%  

4.06

%  

3.42

%

Weighted average discount rate for periodic pension benefit expense

 

4.06

%  

3.42

%  

3.88

%

Rate of increase in future compensation levels

 

n/a

 

n/a

 

n/a

Schedule of Net Benefit Costs [Table Text Block]

    

2019

    

2018

    

2017

(In thousands)

Interest cost

$

797

$

781

$

864

Amortization of unrecognized loss

 

269

 

621

 

697

Expected return on plan assets

 

(1,088)

 

(1,452)

 

(1,392)

Net pension (benefit) expense

 

(22)

 

(50)

 

169

Current year actuarial gain

 

(696)

 

(2,307)

 

(1,192)

Amortization of actuarial loss

 

(269)

 

(621)

 

(697)

Total recognized in other comprehensive income

 

(965)

 

(2,928)

 

(1,889)

Total recognized in net pension cost (benefit) and other comprehensive loss

$

(987)

$

(2,978)

$

(1,720)

    

2019

    

2018

    

2017

(In thousands)

Service cost

$

280

$

350

$

316

Interest cost

 

341

 

307

 

305

Amortization of unrecognized loss

 

 

33

 

Amortization of past service credit

 

(85)

 

(85)

 

(85)

Net postretirement benefit expense

 

536

 

605

 

536

Current year actuarial (gain) loss

 

(301)

 

(1,155)

 

587

Amortization of actuarial loss

 

 

(33)

 

Amortization of prior service credit

 

85

 

85

 

85

Total recognized in other comprehensive income

 

(216)

 

(1,103)

 

672

Total recognized in net postretirement expense and other comprehensive loss

$

320

$

(498)

$

1,208

    

2019

    

2018

    

2017

(In thousands)

Service cost

$

39

$

42

$

42

Interest cost

 

86

 

78

 

89

Amortization of unrecognized gain

 

(141)

 

(91)

 

(92)

Amortization of past service liability

 

 

12

 

40

Net pension expense

 

(16)

 

41

 

79

Current actuarial (gain) loss

 

44

 

(184)

 

(24)

Amortization of actuarial gain

 

141

 

91

 

92

Amortization of prior service cost

 

 

(12)

 

(40)

Total recognized in other comprehensive income

 

185

 

(105)

 

28

Total recognized in net pension expense and other comprehensive income

$

169

$

(64)

$

107

Schedule of Expected Benefit Payments [Table Text Block]

    

Future Benefit

Payments

(In thousands)

2020

$

1,317

2021

 

1,177

2022

 

1,206

2023

 

1,224

2024

 

1,216

2025-2029

 

5,951

    

Future Benefit

Payments

(In thousands)

2020

$

252

2021

 

274

2022

 

307

2023

 

323

2024

 

315

2025-2029

 

1,794

    

Future Benefit

Payments

(In thousands)

2020

$

288

2021

 

288

2022

 

288

2023

 

256

2024

 

220

2025 - 2029

 

916

Schedule of Allocation of Plan Assets [Table Text Block]

    

2019

    

2018

 

Equity securities

 

%  

%

Debt securities

 

100

%  

100

%

Schedule of Changes in Fair Value of Plan Assets [Table Text Block]

At December 31, 

    

2019

    

2018

(In thousands)

Pooled Separate Accounts

 

  

 

  

Long duration bond fund (a)

$

11,242

$

10,045

Long corporate bond fund (b)

 

5,069

 

4,471

Prudential short term (c)

 

403

 

360

Mutual Fund

 

  

 

  

Investment grade bond fund (d)

 

8,791

 

7,543

Total

$

25,505

$

22,419

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]

    

Increase

    

Decrease

(In thousands)

Effect on postretirement benefit obligation

$

1,635

$

(1,272)

Effect on total service and interest cost

 

123

 

(94)

Schedule of Employee Benefit Trust Shares [Table Text Block]

    

2019

    

2018

Shares owned by Employee Benefit Trust, beginning balance

 

329,090

 

445,022

Shares purchased

 

7,267

 

13,669

Shares released and allocated

 

(154,746)

 

(129,601)

Shares owned by Employee Benefit Trust, ending balance

 

181,611

 

329,090

Market value of unallocated shares

$

3,924,614

$

7,085,308