Securities (Narrative) (Details)	9 Months Ended
	Sep. 30, 2019 USD ($) security	Sep. 30, 2018 USD ($)
Securities [Abstract]
Debt securities in unrealized loss position in the less than twelve months category | security	30
Debt securities in unrealized loss position in the twelve months or more category | security	58
Impairment of investments | $	$ 0
Pledged Financial Instruments, Not Separately Reported, Securities | $	$ 179,075,000	$ 169,984,000