Investment Securities - Contractual Maturities of Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Available for Sale Amortized Cost
Due within one year	$ 456
Due over one to five years	1,380
Due over five to ten years	483
Due over ten years	59,702
Amortized Cost	112,354	$ 71,437
Available for Sale Fair Value
Due within one year	461
Due over one to five years	1,409
Due over five to ten years	481
Due over ten years	60,107
Fair Value	$ 114,049	$ 71,486

Amortized cost 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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