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PENSION PLANS (Tables)
12 Months Ended
Dec. 31, 2022
Retirement Benefits [Abstract]  
Schedule of information pertaining to the defined benefit retirement plan
The following tables set forth information pertaining to the defined benefit retirement plan:

 Year Ended December 31,
(Dollars in thousands)20222021
Change in benefit obligation:  
Benefit obligation at beginning of year$20,420 $21,919 
Interest cost212 485 
Actuarial gains(1,766)(427)
Benefits paid(5,398)(1,557)
Annuity purchase(13,468)— 
Benefit obligation at end of the year— 20,420 
Change in plan assets, at fair value:  
Fair value of plan assets at beginning of year20,785 21,153 
Actual return on plan assets(1,969)1,189 
Employer contributions50 — 
Benefits paid(5,398)(1,557)
Annuity purchase(13,468)— 
Fair value of plan assets at end of year— 20,785 
Funded status at end of year$— $365 
Amounts recognized in AOCI:  
Net actuarial losses$— $(4,699)
Benefit obligation actuarial assumptions:  
Weighted-average discount rateN/A2.4 %
 Year Ended December 31,
(Dollars in thousands)202220212020
Components of net periodic benefit cost:   
Interest cost$212 $485 $641 
Expected return on plan assets(207)(549)(920)
Amortization of net actuarial losses225 701 909 
Settlement4,884 — — 
Net periodic benefit cost$5,114 $637 $630 
Net periodic cost actuarial assumptions:   
Weighted-average discount rate2.4 %2.3 %3.1 %
Expected long-term rate of return on plan assets2.3 %2.7 %4.5 %
The following tables set forth information pertaining to the SERP:

 Year Ended December 31,
(Dollars in thousands)20222021
Change in benefit obligation  
Benefit obligation at beginning of year$12,297 $12,740 
Interest cost301 264 
Actuarial gains(2,960)(398)
Benefits paid(418)(309)
Benefit obligation at end of year9,220 12,297 
Change in plan assets  
Fair value of plan assets at beginning of year— — 
Employer contributions418 309 
Benefits paid(418)(309)
Fair value of plan assets at end of year— — 
Funded status at end of year$(9,220)$(12,297)
Amounts recognized in AOCI 
Net transition obligation$(7)$(26)
Net actuarial losses701 (2,337)
Total amounts recognized in AOCI$694 $(2,363)
Benefit obligation actuarial assumptions  
Weighted-average discount rate5.0 %2.5 %
 Year Ended December 31,
(Dollars in thousands)202220212020
Components of net periodic benefit cost   
Interest cost$301 $264 $341 
Amortization of net actuarial (gains) losses79 335 251 
Amortization of net transition obligation18 18 18 
Amortization of prior service cost— — 14 
Net periodic benefit cost$398 $617 $624 
Net periodic cost actuarial assumptions   
Weighted-average discount rate2.7 %2.1 %3.1 %
Schedule of asset allocations by asset category The defined benefit retirement plan assets as of December 31, 2021 consisted of debt securities and money market funds. The asset allocations by asset category were as follows:
 
 December 31, 2021
Debt securities85.9 %
Money market funds14.1 
Total100.0 %
Schedule of fair values of the defined benefit retirement plan by asset category
The fair values of the defined benefit retirement plan as of December 31, 2021 by asset category were as follows: 

(Dollars in thousands)Quoted Prices
in Active 
Markets for 
Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
December 31, 2021    
Money market funds$2,938 $— $— $2,938 
Exchange traded funds10,712 — — 10,712 
Government obligations— 1,899 — 1,899 
Corporate bonds and debentures— 5,236 — 5,236 
Total$13,650 $7,135 $— $20,785 
Schedule of estimated future benefit payments
Estimated future benefit payments reflecting expected future service for the SERP in each of the next five years, in the aggregate for the five years and thereafter are as follows:

(Dollars in thousands)
Year Ending December 31:
2023$573 
2024570 
2025566 
2026561 
2027556 
2028-20324,817 
Thereafter1,577 
Total$9,220