Investment Securities (Narrative) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2016 USD ($) security	Dec. 31, 2015 USD ($)
Securities [Line Items]
Available-for-sale Securities Pledged as Collateral | $	$ 111.3	$ 147.9
Percent of principal outstanding collected of held-to-maturity securities	85.00%
State and Municipal Tax-Exempt [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	7
Number Of Impaired Municipal Securities, School Districts, Uninsured	3
Number Of Impaired Municipal Securities, Townships, Uninsured	2
Number Of Impaired Municipal Securities, Townships, Insured	2
Unrealized loss of security from book value	0.47%
Corporate Bonds [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	7
Number of securities, impaired for more than 12 months	4
Unrealized loss of security from book value	2.98%
US Government Agency Obligations [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	2
Number of securities, impaired for more than 12 months	0
Unrealized loss of security from book value	0.11%
Collateralized Mortgage Obligations GSE [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	12
Number of securities, impaired for more than 12 months	8
Unrealized loss of security from book value	1.84%