Investment Securities - Available-for-sale (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 291,608	$ 231,791
Unrealized Gain	7,050	4,967
Unrealized Loss	(694)	(937)
Fair Value	297,964	235,821
U.S. agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	52,602	52,046
Unrealized Gain	994	199
Unrealized Loss	(214)	(249)
Fair Value	53,382	51,996
U.S. sponsored mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	67,931	58,748
Unrealized Gain	382	188
Unrealized Loss	(216)	(624)
Fair Value	68,097	58,312
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	148,019	108,750
Unrealized Gain	5,503	4,399
Unrealized Loss	(178)	(57)
Fair Value	153,344	113,092
Other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,500
Unrealized Gain	0
Unrealized Loss	0
Fair Value	7,500
Total debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	276,052	219,544
Unrealized Gain	6,879	4,786
Unrealized Loss	(608)	(930)
Fair Value	282,323	223,400
Other securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	15,556	12,247
Unrealized Gain	171	181
Unrealized Loss	(86)	(7)
Fair Value	$ 15,641	$ 12,421

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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