Share-Based Compensation Plans - Company's restricted stock award activities (Details)	9 Months Ended
	Sep. 30, 2024 USD ($) $ / shares shares
Share-Based Compensation Plans
Market value of common stock (in dollars per share)	$ 34.04
Restricted stock
Share-Based Compensation Plans
Shares of Restricted Stock, Non-vested beginning of period | shares	69,090
Shares of Restricted Stock, Issued | shares	54,855
Shares of Restricted Stock, Vested | shares	(30,255)
Shares of Restricted Stock, Forfeited | shares	(625)
Shares of Restricted Stock, Non-vested end of period | shares	93,065
Weighted Average Grant Date Fair Value, Non-vested beginning of period (in dollars per share)	$ 25.54
Weighted Average Grant Date Fair Value, Issued (in dollars per share)	34.65
Weighted Average Grant Date Fair Value, Vested (in dollars per share)	24.86
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)	27.86
Weighted Average Grant Date Fair Value, Non-vested end of period (in dollars per share)	$ 31.12
Weighted Average Remaining Contractual Term (Years)	3 years 9 months 18 days
Aggregate intrinsic value | $	$ 3,168,000