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Securities - Available for sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 360,981	$ 280,824
Gross Unrealized Gains	4,116	5,769
Gross Unrealized Losses	(1,684)	(204)
Fair Value	363,413	286,389
U.S. government agencies and corporations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	63,271	48,171
Gross Unrealized Gains	73	121
Gross Unrealized Losses	(772)	(10)
Fair Value	62,572	48,282
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	184,548	120,664
Gross Unrealized Gains	2,105	3,165
Gross Unrealized Losses	(533)	(115)
Fair Value	186,120	123,714
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	94,872	100,405
Gross Unrealized Gains	1,748	2,436
Gross Unrealized Losses	(315)	(36)
Fair Value	96,305	102,805
Corporate and other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	18,290	11,584
Gross Unrealized Gains	190	47
Gross Unrealized Losses	(64)	(43)
Fair Value	$ 18,416	$ 11,588

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- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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