Fair Value Measurements - Fair Value of Assets on Recurring Basis Segregated by Level of Valuation Inputs (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt investment securities:
Common stock - financial services industry	$ 206	$ 206
Investment securities - available-for-sale	258,716	191,726
Equity investment securities:
Investment securities - marketable securities measured at NAV	206	206
Level 1 [Member] | Total Fair Value [Member]
Equity investment securities:
Investment securities - marketable securities measured at NAV	3,206	1,862
Level 2 [Member]
Equity investment securities:
Investment securities - marketable securities measured at NAV	3,200
Level 2 [Member] | Total Fair Value [Member]
Debt investment securities:
Investment securities - available-for-sale	254,167	186,757
Interest rate derivatives, at fair value, net :
Interest rate swap derivative cash flow hedges (unrealized gain carried as receivable from derivative counterparties)	(45)	519
Net Asset Value [Member] | Total Fair Value [Member]
Debt investment securities:
Investment securities - available-for-sale	4,343	4,763
Mutual funds Common Stock Financial Services Industry [Member]
Debt investment securities:
Common stock - financial services industry	206	206
Equity investment securities:
Investment securities - marketable securities measured at NAV	206	206
Recurring Basis [Member] | Level 1 [Member]
Debt investment securities:
Total available-for-sale securities	206	206
Recurring Basis [Member] | Level 2 [Member]
Debt investment securities:
US Treasury, agencies and GSEs	80,083	29,364
State and political subdivisions	32,924	45,385
Corporate	6,576	7,066
Asset backed securities	19,892	15,400
Residential mortgage-backed - US agency	24,418	16,400
Collateralized mortgage obligations - US agency	12,179	11,708
Collateralized mortgage obligations - Private label	78,095	61,434
Investment securities - available-for-sale	254,167	186,757
Total available-for-sale securities	254,167	186,757
Interest rate derivatives, at fair value, net :
Interest rate swap derivative fair value hedges (unrealized gain carried as receivable from derivative counterparties)	5,160	9,717
Interest rate swap derivative cash flow hedges (unrealized gain carried as receivable from derivative counterparties)	45	(519)
Recurring Basis [Member] | Fair Value Inputs Level12 And3 [Member] | Total Fair Value [Member]
Debt investment securities:
US Treasury, agencies and GSEs	80,083	29,364
State and political subdivisions	32,924	45,385
Corporate	6,576	7,066
Asset backed securities	19,892	15,400
Residential mortgage-backed - US agency	24,418	16,400
Collateralized mortgage obligations - US agency	12,179	11,708
Collateralized mortgage obligations - Private label	78,095	61,434
Investment securities - available-for-sale	254,167	186,757
Total available-for-sale securities	258,716	191,726
Equity investment securities:
Investment securities - marketable securities measured at NAV	3,206	1,862
Interest rate derivatives, at fair value, net :
Interest rate swap derivative fair value hedges (unrealized gain carried as receivable from derivative counterparties)	5,160	9,717
Interest rate swap derivative cash flow hedges (unrealized gain carried as receivable from derivative counterparties)	45	(519)
Recurring Basis [Member] | Net Asset Value [Member] | Total Fair Value [Member]
Debt investment securities:
Corporate issuances measured at NAV	4,343	4,763
Recurring Basis [Member] | Mutual funds Common Stock Financial Services Industry [Member] | Level 1 [Member]
Debt investment securities:
Common stock - financial services industry	206	206
Recurring Basis [Member] | Mutual funds Common Stock Financial Services Industry [Member] | Fair Value Inputs Level12 And3 [Member] | Total Fair Value [Member]
Debt investment securities:
Common stock - financial services industry	$ 206	$ 206