Investment Securities - Held to Maturity (Details)	3 Months Ended
	Mar. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($) security	Mar. 31, 2023 USD ($) security
Schedule of Held-to-maturity Securities [Line Items]
Debt securities, available-for-sale, allowance for credit loss, excluding accrued interest	$ 0
Held-To-Maturity Securities, at Amortized Cost	128,051,000	$ 131,395,000	$ 167,347,000
Gross Unrealized Gains			2,000
Gross Unrealized Losses	(3,190,000)	(2,558,000)	(2,910,000)
Held-To-Maturity Securities, at Fair Value	124,861,000	128,837,000	164,439,000
Maturities of Debt Securities, at Amortized Cost:
Within One Year	47,680,000
From 1 - 5 Years	78,148,000
From 5 - 10 Years	2,217,000
Over 10 Years	6,000
Maturities of Debt Securities, at Fair Value:
Within One Year	47,387,000
From 1 - 5 Years	75,305,000
From 5 - 10 Years	2,163,000
Over 10 Years	6,000
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	1,143,000	1,472,000	43,121,000
12 Months or Longer	106,867,000	111,383,000	100,983,000
Total	$ 108,010,000	$ 112,855,000	$ 144,104,000
Number of Securities in a Continuous Loss Position | security	324	335	402,000
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 17,000	$ 14,000	$ 496,000
12 Months or Longer	3,173,000	2,545,000	2,414,000
Total	3,190,000	2,559,000	2,910,000
Debt securities, available-for-sale, excluding accrued interest, allowance for credit loss, not to sell before recovery, credit loss, previously recorded, expense (reversal)	0
Debt securities, held-to-maturity, allowance for credit loss, excluding accrued interest	0
Equity Securities	1,942,000	1,925,000	2,070,000
State and Municipal Obligations
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	119,742,000	122,450,000	156,314,000
Gross Unrealized Gains			2,000
Gross Unrealized Losses	(2,794,000)	(2,157,000)	(2,421,000)
Held-To-Maturity Securities, at Fair Value	116,948,000	120,293,000	153,895,000
Maturities of Debt Securities, at Amortized Cost:
Within One Year	47,680,000
From 1 - 5 Years	69,839,000
From 5 - 10 Years	2,217,000
Over 10 Years	6,000
Maturities of Debt Securities, at Fair Value:
Within One Year	47,387,000
From 1 - 5 Years	67,392,000
From 5 - 10 Years	2,163,000
Over 10 Years	6,000
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	1,143,000	1,472,000	43,121,000
12 Months or Longer	98,954,000	102,839,000	90,439,000
Total	$ 100,097,000	$ 104,311,000	$ 133,560,000
Number of Securities in a Continuous Loss Position | security	308	319	386,000
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 17,000	$ 14,000	$ 496,000
12 Months or Longer	2,777,000	2,143,000	1,925,000
Total	2,794,000	2,157,000	2,421,000
Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	8,309,000	8,945,000	11,033,000
Gross Unrealized Gains			0
Gross Unrealized Losses	(396,000)	(401,000)	(489,000)
Held-To-Maturity Securities, at Fair Value	7,913,000	8,544,000	10,544,000
Maturities of Debt Securities, at Amortized Cost:
Within One Year	0
From 1 - 5 Years	8,309,000
From 5 - 10 Years	0
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	0
From 1 - 5 Years	7,913,000
From 5 - 10 Years	0
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	0	0	0
12 Months or Longer	7,913,000	8,544,000	10,544,000
Total	$ 7,913,000	$ 8,544,000	$ 10,544,000
Number of Securities in a Continuous Loss Position | security	16	16	16,000
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 0	$ 0	$ 0
12 Months or Longer	396,000	402,000	489,000
Total	396,000	402,000	489,000
Fair Value, Measurements, Recurring
Unrealized Losses on Securities in a Continuous Loss Position:
Equity Securities	1,942,000	1,925,000	2,070,000
Collateral Pledged
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, Pledged as Collateral, at Carrying Value	112,135,000	115,030,000	149,810,000
Held-To-Maturity Securities, Pledged as Collateral, at Fair Value	108,945,000	112,472,000	146,902,000
Municipal Bonds | State and Municipal Obligations
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	119,742,000	122,450,000	156,314,000
Municipal Bonds | Fair Value, Measurements, Recurring | State and Municipal Obligations
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Fair Value	116,948,000	120,293,000	153,895,000
US Government Agencies Debt Securities | Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	2,911,000	3,114,000	3,699,000
US Government Agencies Debt Securities | Fair Value, Measurements, Recurring | Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Fair Value	2,766,000	2,954,000	3,522,000
US Government-sponsored Enterprises Debt Securities | Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	5,398,000	5,831,000	7,334,000
US Government-sponsored Enterprises Debt Securities | Fair Value, Measurements, Recurring | Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Fair Value	$ 5,147,000	$ 5,589,000	$ 7,022,000