Investment Securities (Proceeds from Sales and Realized Gains and Losses) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Investment Securities [Abstract] | ||
| Proceeds | $ 21,872 | $ 2,005 |
| Realized gains | 75 | 151 |
| Realized losses | $ 75 | $ 38 |