Securities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Securities [Abstract]
Carrying value of securities pledged as collateral to secure public deposits	$ 57.5	$ 62.0
Fair value of investments, carried at less than historical costs	$ 42.9	$ 51.5
Percentage available for sale Securities in unrealized loss positions out of total available for sale securities	38.00%	47.00%

Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 405

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6479006&loc=d3e64164-112818

Name:	us-gaap_DepositLiabilitiesCollateralIssuedFinancialInstruments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant