Investment Securities - Schedule of Investment Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Securities Available for Sale:
Amortized Cost	$ 466,741	$ 372,231
Gross Unrealized Gains	6,062	8,997
Gross Unrealized Losses	(3,089)	(414)
Fair Value	469,714	380,814
U.S. treasury securities
Securities Available for Sale:
Amortized Cost		245
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		245
U.S. agency
Securities Available for Sale:
Amortized Cost	18,234	1,000
Gross Unrealized Gains	51	4
Gross Unrealized Losses	(113)	0
Fair Value	18,172	1,004
State, county & municipal securities
Securities Available for Sale:
Amortized Cost	82,805	61,298
Gross Unrealized Gains	688	1,155
Gross Unrealized Losses	(1,090)	(65)
Fair Value	82,403	62,388
Corporate debt securities
Securities Available for Sale:
Amortized Cost	4,750	4,250
Gross Unrealized Gains	20	1
Gross Unrealized Losses	0	(1)
Fair Value	4,770	4,250
Other securities
Securities Available for Sale:
Amortized Cost	8,058
Gross Unrealized Gains	0
Gross Unrealized Losses	(20)
Fair Value	8,038
Mortgage-backed securities
Securities Available for Sale:
Amortized Cost	352,894	305,438
Gross Unrealized Gains	5,303	7,837
Gross Unrealized Losses	(1,866)	(348)
Fair Value	$ 356,331	$ 312,927

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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