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Stock and Incentive Compensation Plans (Tables)
12 Months Ended
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Black-Scholes Option Pricing Model
The table below includes the weighted-average assumptions used to calculate the grant date fair value of the ESPP rights for the periods indicated using the Black-Scholes option pricing model:
Years Ended December 31,
202420232022
Expected term (in years)1.001.001.00
Dividend yield$2.02 $1.88 $1.41 
Risk-free interest rate4.94 %3.90 %1.24 %
Expected volatility30.69 31.63 37.90 
Schedule of ESPP Shares Purchased
The ESPP shares purchased are as follows for the dates indicated:
Years Ended December 31,
202420232022
ESPP shares purchased56,658 46,213 26,089 
Shares available for issuance under the ESPP871,040 927,698 973,911 
Schedule of Compensation Expense
Compensation expense for the CEO PSUs will be recognized over the vesting period of the awards based on the fair value of the award at the grant date determined by using a Monte Carlo simulation model with the following inputs:
Simulation InputsYear Ended December 31, 2022
Grant dateDecember 13, 2022
Performance periodseven years
Stock price$36.87 
Expected volatility (1)
33.0 %
Risk-free rate (2)
3.5 
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(1)The expected volatility was determined based on the historical volatilities of the Company and the specified peer group.
(2)The risk-free interest rate for the performance period was derived from the seven-year continuous U.S. Treasury Yield constant maturity curve on the valuation date.
Schedule of Time-Vested Award Activity
The following table summarizes the Company’s award activity:
Years Ended December 31,
202420232022
SharesWeighted Average Grant-Date Fair ValueSharesWeighted Average Grant-Date Fair ValueSharesWeighted Average Grant-Date Fair Value
Nonvested RSAs, January 1,17,629 $29.33 27,391 $35.37 48,048 $35.27 
Granted RSAs20,415 33.06 16,788 28.61 12,840 37.39 
Vested RSAs(17,629)29.33 (26,550)35.11 (33,497)36.00 
Nonvested RSAs, December 31,
20,415 33.06 17,629 29.33 27,391 35.37 
Nonvested RSUs, January 1,318,168 $37.69 270,390 $39.63 73,977 $40.64 
Granted RSUs119,149 32.01 116,098 35.65 222,282 39.43 
Vested RSUs(83,889)38.93 (55,614)41.98 (24,028)40.56 
Forfeited RSUs(1,426)42.15 (12,706)41.59 (1,841)43.48 
Nonvested RSUs, December 31,
352,002 35.45 318,168 37.69 270,390 39.63 
Nonvested PSUs, January 1,197,842 $28.33 157,367 $29.06 — $— 
Granted PSUs67,355 33.03 43,591 31.77 157,367 29.06 
Forfeited PSUs— — (3,116)31.77 — — 
Nonvested PSUs, December 31,
265,197 32.07 197,842 28.33 157,367 29.06 
Schedule of Share-Based Compensation Cost Charged to Income
Share-based compensation cost charged to income for the years ended December 31, 2024, 2023 and 2022, is presented below. There was no stock option expense for any of the periods shown.
Years Ended December 31,
(Dollars in thousands)202420232022
RSA & RSU$4,631 $4,321 $2,845 
PSU2,043 534 288 
ESPP492 426 316 
Total stock compensation expense$7,166 $5,281 $3,449 
Related tax benefits recognized in net income$1,505 $1,109 $724 
Schedule of Stock Option Activity
The table below summarizes the Company’s option activity:
(Dollars in thousands, except per share amounts)Number of SharesWeighted Average Exercise PriceWeighted Average Remaining Contractual Term (in years)Aggregate Intrinsic Value
Year Ended December 31, 2024
Outstanding at January 1, 2024353,473 $31.49 4.46$1,670 
Exercised(73,188)26.50 — 559 
Expired and forfeited(54,451)35.06 — — 
Outstanding and exercisable at December 31, 2024
225,834 32.24 3.72614 
Year Ended December 31, 2023
Outstanding at January 1, 2023
504,437 $29.46 5.13$3,736 
Exercised(135,746)23.61 — 1,533 
Expired and forfeited(15,218)34.48 — — 
Outstanding and exercisable at December 31, 2023
353,473 31.49 4.461,670 
Year Ended December 31, 2022
Outstanding at January 1, 2022
39,200 $10.73 2.28$1,262 
BTH options converted to OBK options611,676 28.62 — 8,838 
Exercised(144,785)20.80 — 2,992 
Expired and forfeited(1,654)34.44 — — 
Outstanding and exercisable at December 31, 2022
504,437 29.46 5.133,736