Investment Securities, Proceeds From Sales (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Proceeds from sales and calls of securities [Abstract]
Proceeds	$ 5,300	$ 99,323	$ 7,831
Gains	1	78	143
Losses	$ 0	$ 1,338	$ 12