Deposits - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Deposits [Abstract]
Deposits, public funds	$ 34.0	$ 28.5
Time Deposits at or Above FDIC Insurance Limit	130.6	129.3
Interest Expense, Time Deposits, at or Above FDIC Insurance Limit	2.9	1.8
Deposits controlled by management, members of the Board of Directors and related entities	$ 2.1	$ 16.0