Investment Securities - Amortized Cost and Market Value of Securities Available for Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Investment Securities
Amortized Cost	$ 112,354	$ 71,437
Gross Unrealized Gains	2,031	393
Gross Unrealized Losses	(336)	(344)
Fair Value	114,049	71,486
Collateralized mortgage obligations
Investment Securities
Amortized Cost	24,261	27,618
Gross Unrealized Gains	396	52
Gross Unrealized Losses	(14)	(187)
Fair Value	24,643	27,483
Agency mortgage-backed securities
Investment Securities
Amortized Cost	26,072	27,823
Gross Unrealized Gains	886	149
Gross Unrealized Losses	(10)	(135)
Fair Value	26,948	27,837
Municipal securities
Investment Securities
Amortized Cost	28,675	12,301
Gross Unrealized Gains	740	191
Gross Unrealized Losses	(2)	(17)
Fair Value	29,413	12,475
U.S. Government agency securities
Investment Securities
Amortized Cost	33,346	3,195
Gross Unrealized Gains	9	1
Gross Unrealized Losses	(310)	(5)
Fair Value	$ 33,045	3,191
U.S. Treasury securities
Investment Securities
Amortized Cost		500
Fair Value		$ 500

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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Amount, before tax, of unrealized loss 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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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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Amount of 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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