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Securities (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) security	Mar. 31, 2018 USD ($)
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items]
Securities evaluated for other than temporary impairment	53
Available-for-sale Securities, Gross Realized Gains | $	$ 0	$ 0
Available-for-sale Securities, Gross Realized Losses | $	0	0
Held-to-maturity securities sales | $	$ 0	$ 0
US Agency Obligations [Member]
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items]
Securities evaluated for other than temporary impairment	32
Municipals [Member]
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items]
Securities evaluated for other than temporary impairment	16
Corporates [Member]
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items]
Securities evaluated for other than temporary impairment	5
S&P Rated AAA [Member]
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items]
Securities evaluated for other than temporary impairment	11
S&P Rated AA [Member]
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items]
Securities evaluated for other than temporary impairment	39
S&P Rated A [Member]
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items]
Securities evaluated for other than temporary impairment	2
S&P Rated BBB+ [Member]
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items]
Securities evaluated for other than temporary impairment	1

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Number of securities evaluated for other than temporary impairment.

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