Investment Securities - Held to Maturity (Details)	3 Months Ended
	Sep. 30, 2022 USD ($) security	Dec. 31, 2021 USD ($) security	Sep. 30, 2021 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	182,178,000	$ 196,566,000	$ 198,337,000
Gross Unrealized Gains	1,000	4,726,000	5,599,000
Gross Unrealized Losses	(6,379,000)	0	0
Held-To-Maturity Securities, at Fair Value	175,800,000	201,292,000	203,936,000
Maturities of Debt Securities, at Amortized Cost:
Within One Year	50,423,000
From 1 - 5 Years	127,672,000
From 5 - 10 Years	4,044,000
Over 10 Years	39,000
Maturities of Debt Securities, at Fair Value:
Within One Year	50,058,000
From 1 - 5 Years	121,896,000
From 5 - 10 Years	3,807,000
Over 10 Years	39,000
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	153,083,000	0	0
12 Months or Longer	0	0	0
Total	$ 153,083,000	$ 0	$ 0
Number of Securities in a Continuous Loss Position | security	435	0	0
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 6,379,000	$ 0	$ 0
12 Months or Longer	0	0	0
Total	6,379,000	0	0
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	2,126,000	1,747,000	1,886,000
State and Municipal Obligations
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	169,619,000	180,195,000	179,952,000
Gross Unrealized Gains	1,000	4,179,000	4,834,000
Gross Unrealized Losses	(5,771,000)	0	0
Held-To-Maturity Securities, at Fair Value	163,849,000	184,374,000	184,786,000
Maturities of Debt Securities, at Amortized Cost:
Within One Year	50,423,000
From 1 - 5 Years	115,113,000
From 5 - 10 Years	4,044,000
Over 10 Years	39,000
Maturities of Debt Securities, at Fair Value:
Within One Year	50,058,000
From 1 - 5 Years	109,945,000
From 5 - 10 Years	3,807,000
Over 10 Years	39,000
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	141,132,000	0	0
12 Months or Longer	0	0	0
Total	$ 141,132,000	$ 0	$ 0
Number of Securities in a Continuous Loss Position | security	419	0	0
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 5,771,000	$ 0	$ 0
12 Months or Longer	0	0	0
Total	5,771,000	0	0
Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	12,559,000	16,371,000	18,385,000
Gross Unrealized Gains	0	547,000	765,000
Gross Unrealized Losses	(608,000)	0	0
Held-To-Maturity Securities, at Fair Value	11,951,000	16,918,000	19,150,000
Maturities of Debt Securities, at Amortized Cost:
Within One Year	0
From 1 - 5 Years	12,559,000
From 5 - 10 Years	0
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	0
From 1 - 5 Years	11,951,000
From 5 - 10 Years	0
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	11,951,000	0	0
12 Months or Longer	0	0	0
Total	$ 11,951,000	$ 0	$ 0
Number of Securities in a Continuous Loss Position | security	16	0	0
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 608,000	$ 0	$ 0
12 Months or Longer	0	0	0
Total	608,000	0	0
Fair Value, Measurements, Recurring
Unrealized Losses on Securities in a Continuous Loss Position:
Equity Securities	2,126,000	1,747,000	1,886,000
Collateral Pledged
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, Pledged as Collateral, at Fair Value	153,364,000	175,218,000	192,929,000
US Government Agencies Debt Securities | Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	4,115,000	5,518,000	6,302,000
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	3,924,000	5,647,000	6,506,000
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	8,444,000	10,853,000	12,083,000
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	$ 8,027,000	$ 11,271,000	$ 12,644,000