Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Contractual Maturities, Amortized Cost
Within one year	$ 23,250
After one through five years	226,748
After ten years	5,309
Amortized Costs, Gross	255,307
Amortized Costs, Net	289,664	$ 331,529
Contractual Maturities, Fair Value
Within one year	23,233
After one through five years	226,783
After ten years	5,659
Fair Value, Gross	255,675
Available-for-sale Securities, Debt Securities, Total	290,243	331,071
Mortgage-backed - Government-sponsored entity (GSE) - residential
Contractual Maturities, Amortized Cost
Amortized Costs, Mortgage-backed - Government-sponsored entity (GSE) - residential	34,357
Amortized Costs, Net	34,357	60,693
Contractual Maturities, Fair Value
Fair Value, Mortgage-backed - Government-sponsored entity (GSE) - residential	34,568
Available-for-sale Securities, Debt Securities, Total	$ 34,568	$ 60,868

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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