Investment Securities Schedule of Held to Maturity Securities (Details) $ in Thousands	Dec. 31, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	$ 218,405	$ 245,065
Held-To-Maturity Securities, at Fair Value	226,576	249,618
Gross Unrealized Gains	8,174	4,647
Gross Unrealized Losses	3	94
Held-To-Maturity Securities, Pledged as Collateral, at Fair Value	211,176	237,969
Maturities of Debt Securities, at Amortized Cost:
Within One Year	18,968
From 1 - 5 Years	162,930
From 5 - 10 Years	35,503
Over 10 Years	1,004
Maturities of Debt Securities, at Fair Value:
Within One Year	19,127
From 1 - 5 Years	168,993
From 5 - 10 Years	37,435
Over 10 Years	1,021
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	1,513	1,438
12 Months or Longer	0	1,994
Total	$ 1,513	$ 3,432
Number of Securities in a Continuous Loss Position | security	4	10
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 3	$ 85
12 Months or Longer	0	9
Total	3	94
State and Municipal Obligations
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	192,352	208,243
Held-To-Maturity Securities, at Fair Value	199,429	212,319
Gross Unrealized Gains	7,080	4,170
Gross Unrealized Losses	3	94
Maturities of Debt Securities, at Amortized Cost:
Within One Year	15,465
From 1 - 5 Years	140,380
From 5 - 10 Years	35,503
Over 10 Years	1,004
Maturities of Debt Securities, at Fair Value:
Within One Year	15,537
From 1 - 5 Years	145,436
From 5 - 10 Years	37,435
Over 10 Years	1,021
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	1,513	1,438
12 Months or Longer	0	1,994
Total	$ 1,513	$ 3,432
Number of Securities in a Continuous Loss Position | security	4	10
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 3	$ 85
12 Months or Longer	0	9
Total	3	94
Collateralized Mortgage Backed Securities
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	26,053	36,822
Held-To-Maturity Securities, at Fair Value	27,147	37,299
Gross Unrealized Gains	1,094	477
Gross Unrealized Losses	0	0
Maturities of Debt Securities, at Amortized Cost:
Within One Year	3,503
From 1 - 5 Years	22,550
From 5 - 10 Years	0
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	3,590
From 1 - 5 Years	23,557
From 5 - 10 Years	0
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	0	0
12 Months or Longer	0	0
Total	$ 0	$ 0
Number of Securities in a Continuous Loss Position | security	0	0
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 0	$ 0
12 Months or Longer	0	0
Total	0	0
Agency Securities | Collateralized Mortgage Backed Securities
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	9,440	1,703
Agency Securities | Collateralized Mortgage Backed Securities | Fair Value, Measurements, Recurring
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Fair Value	9,762	1,720
US Government-sponsored Enterprises Debt Securities | Collateralized Mortgage Backed Securities
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Amortized Cost	16,613	35,119
US Government-sponsored Enterprises Debt Securities | Collateralized Mortgage Backed Securities | Fair Value, Measurements, Recurring
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Fair Value	$ 17,385	$ 35,579