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Stock and Incentive Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2023

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,
															2023						2022						2021
Expected term (in years)															1.00						1.00						1.00
Dividend yield															$	1.88					$	1.41					$	1.25
Risk-free interest rate															3.90		%				1.24		%				0.10		%
Expected volatility															31.63						37.90						45.96

Schedule of ESPP Shares Purchased

The ESPP shares purchased are as follows for the dates indicated:

									Years Ended December 31,
															2023						2022						2021
ESPP shares purchased															46,213						26,089						—
Shares available for issuance under the ESPP															927,698						973,911						1,000,000

Schedule of Share-Based Compensation Cost Charged to Income

Share-based compensation cost charged to income for the years ended December 31, 2023, 2022 and 2021, is presented below. There was no stock option expense for any of the periods shown.

															Years Ended December 31,
(Dollars in thousands)																											2023						2022						2021
RSA & RSU																											$	4,321					$	2,845					$	2,100
PSU																											534						288						—
ESPP																											426						316						195
Total stock compensation expense																											$	5,281					$	3,449					$	2,295
Related tax benefits recognized in net income																											$	1,109					$	724					$	482

Schedule of Time-Vested Award Activity

The following table summarizes the Company’s award activity:

			Years Ended December 31,
			2023												2022												2021
			Shares						Weighted Average Grant-Date Fair Value						Shares						Weighted Average Grant-Date Fair Value						Shares						Weighted Average Grant-Date Fair Value
Nonvested RSAs, January 1,			27,391						$	35.37					48,048						$	35.27					103,359						$	31.51
Granted RSAs			16,788						28.61						12,840						37.39						13,460						42.26
Vested RSAs			(26,550)						35.11						(33,497)						36.00						(67,825)						31.07
Forfeited RSAs			—						—						—						—						(946)						24.69
Nonvested RSAs, December 31,			17,629						29.33						27,391						35.37						48,048						35.27
Nonvested RSUs, January 1,			270,390						$	39.63					73,977						$	40.64					—						$	—
Granted RSUs			116,098						35.65						222,282						39.43						73,977						40.64
Vested RSUs			(55,614)						41.98						(24,028)						40.56						—						—
Forfeited RSUs			(12,706)						41.59						(1,841)						43.48						—						—
Nonvested RSUs, December 31,			318,168						37.69						270,390						39.63						73,977						40.64
Nonvested PSUs, January 1,			157,367						$	29.06					—						$	—					—						$	—
Granted PSUs			43,591						31.77						157,367						29.06						—						—
Forfeited PSUs			(3,116)						31.77						—						—						—						—
Nonvested PSUs, December 31,			197,842						28.33						157,367						29.06						—						—

Schedule of Stock Option Activity

The table below summarizes the status of the Company’s stock options and changes during the years ended December 31, 2023, 2022, and 2021.

(Dollars in thousands, except per share amounts)			Number of Shares						Weighted Average Exercise Price						Weighted Average Remaining Contractual Term (in years)						Aggregate Intrinsic Value
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			(15,218)						34.48						—						—
Outstanding and exercisable at December 31, 2023			353,473						31.49						4.46						1,670
Year Ended December 31, 2022
Outstanding at January 1, 2022			39,200						$	10.73					2.28						$	1,262
BTH options converted to OBK options			611,676						28.62						—						8,838
Exercised			(144,785)						20.80						—						2,992
Expired			(1,654)						34.44						—						—
Outstanding and exercisable at December 31, 2022			504,437						29.46						5.13						3,736
Year Ended December 31, 2021
Outstanding at January 1, 2021			224,000						$	10.86					4.92						$	3,789
Exercised			(184,800)						10.88						—						6,447
Outstanding and exercisable at December 31, 2021			39,200						10.73						2.28						1,262

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 Inputs			Year Ended December 31, 2022
Grant date			December 13, 2022
Performance period			seven years
Stock price			$	36.87
Expected volatility (1)			33.0		%
Risk-free rate (2)			3.5

____________________________

(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.

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