Investment Securities (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($) security	Dec. 31, 2015 USD ($)
Securities [Line Items]
Available-for-sale Securities Pledged as Collateral | $	$ 146.2	$ 147.9
Mortgage Backed Securities [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	0
State and Municipal Tax-Exempt [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	9
Number of securities, impaired for more than 12 months	4
Number Of Impaired Municipal Securities, School Districts, Insured	1
Number Of Impaired Municipal Securities, School Districts, Uninsured	3
Number Of Impaired Municipal Securities, Townships, Uninsured	5
Unrealized loss of security from book value	2.26%
Corporate Bonds [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	8
Number of securities, impaired for more than 12 months	3
Unrealized loss of security from book value	3.06%
US Government Agency Obligations [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	1
Unrealized loss of security from book value	0.03%
Collateralized Mortgage Obligations GSE [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	14
Number of securities, impaired for more than 12 months	11
Unrealized loss of security from book value	2.37%