Derivative Instruments And Hedging Activities (Narrative) (Details) (Interest Rate Swap Contracts [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 30, 2013
Interest Rate Swap Contracts [Member]
Derivative [Line Items]
Agreement related to the outstanding trust preferred capital notes, date	Dec. 04, 2008
Agreement effective, date	Dec. 01, 2008
Notional amount of derivatives	$ 7.0
Agreement expiration date	Dec. 01, 2016
Derivative, Fixed Interest Rate	2.85%

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant