Investment Securities - Contractual Maturities on Collateralized Mortgage Obligation (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Amortized Cost
Due in one year or less	$ 0
Due after one year through five years	300
Due after five years through ten years	18,224
Due after ten years	26,426
Collateralized mortgage obligations	42,054
Amortized Cost	87,004	$ 76,561
Fair Value (Carrying Amount)
Due in one year or less	0
Due after one year through five years	300
Due after five years through ten years	18,332
Due after ten years	26,388
Collateralized mortgage obligations	42,897
Fair Value (Carrying Amount)	$ 87,917	$ 76,312

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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