Fair Value Measurements - Fair Value of Assets on Recurring Basis Segregated by Level of Valuation Inputs (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt investment securities:
Investment securities - available-for-sale	$ 271,977	$ 258,716
Equity investment securities:
Common stock, equity securities	206	206
Other Securities:
Private equity securities	206	206
Mutual funds Common Stock Financial Services Industry [Member]
Equity investment securities:
Common stock, equity securities	206	206
Other Securities:
Private equity securities	206	206
Level 1 [Member] | Total Fair Value [Member]
Other Securities:
Private equity securities	3,872	3,206
Level 2 [Member] | Total Fair Value [Member]
Debt investment securities:
Investment securities - available-for-sale	267,479	254,167
Net Asset Value [Member] | Total Fair Value [Member]
Debt investment securities:
Investment securities - available-for-sale	4,292	4,343
Recurring Basis [Member] | Total Fair Value [Member]
Debt investment securities:
US Treasury, agencies and GSEs	76,830	80,083
State and political subdivisions	33,042	32,924
Corporate	6,664	6,576
Asset backed securities	19,160	19,892
Residential mortgage-backed - US agency	35,234	24,418
Collateralized mortgage obligations - US agency	14,287	12,179
Collateralized mortgage obligations - Private label	82,262	78,095
Investment securities - available-for-sale	267,479	254,167
Other Securities:
Total available-for-sale securities	271,977	258,716
Private equity securities	3,872	3,206
Interest rate swap derivative fair value hedges	184	5,160
Interest rate swap derivative cash flow hedges		45
Recurring Basis [Member] | Total Fair Value [Member] | Mutual funds Common Stock Financial Services Industry [Member]
Equity investment securities:
Common stock, equity securities	206	206
Recurring Basis [Member] | Level 1 [Member]
Other Securities:
Total available-for-sale securities	206	206
Recurring Basis [Member] | Level 1 [Member] | Mutual funds Common Stock Financial Services Industry [Member]
Equity investment securities:
Common stock, equity securities	206	206
Recurring Basis [Member] | Level 2 [Member]
Debt investment securities:
US Treasury, agencies and GSEs	76,830	80,083
State and political subdivisions	33,042	32,924
Corporate	6,664	6,576
Asset backed securities	19,160	19,892
Residential mortgage-backed - US agency	35,234	24,418
Collateralized mortgage obligations - US agency	14,287	12,179
Collateralized mortgage obligations - Private label	82,262	78,095
Investment securities - available-for-sale	267,479	254,167
Other Securities:
Total available-for-sale securities	267,479	254,167
Interest rate swap derivative fair value hedges	184	5,160
Interest rate swap derivative cash flow hedges		45
Recurring Basis [Member] | Net Asset Value [Member] | Total Fair Value [Member]
Other Securities:
Corporate measured at NAV	$ 4,292	$ 4,343