Derivative Financial Instruments (Balance Sheet Category and Fair Values of Embedded Derivatives) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Other noninterest income
Derivative [Line Items]
Amount of gain (loss)	$ 66	$ 339
Other assets
Derivative [Line Items]
Notional Amount	9,627	11,266
Fair Value, embedded derivative asset	465	453
Other liabilities
Derivative [Line Items]
Notional Amount	0	2,231
Fair Value, embedded derivative liability	$ 0	$ (54)