Investment Securities (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2015 USD ($) security	Dec. 31, 2014 USD ($)
Securities [Line Items]
Available-for-sale Securities Pledged as Collateral | $	$ 169.6	$ 174.9
Percent of principal outstanding collected of held-to-maturity securities	85.00%
Mortgage Backed Securities [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	19
Number of securities, impaired for more than 12 months	3
Unrealized loss of security from book value	1.84%
State and municipal tax-exempt [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	42
Number of securities, impaired for more than 12 months	14
Number Of Impaired Municipal Securities, School Districts, Insured	24
Number Of Impaired Municipal Securities, School Districts, Uninsured	13
Number Of Impaired Municipal Securities, Townships	2
Number Of Impaired Municipal Securities, Townships, Uninsured	3
Unrealized loss of security from book value	9.55%
Corporate bonds [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	12
Number of securities, impaired for more than 12 months	3
Unrealized loss of security from book value	2.24%
US Government agency obligations [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	4
Number of securities, impaired for more than 12 months	0
Unrealized loss of security from book value	0.74%
Collateralized mortgage obligations GSE [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	16
Number of securities, impaired for more than 12 months	14
Unrealized loss of security from book value	5.16%
Equity securities [Member]
Securities [Line Items]
Securities in unrealized loss positions qualitative disclosure number of positions	5
Number of securities, impaired for more than 12 months	5
Unrealized loss of security from book value	79.96%