Benefit Plans (Fair Value of Plan Assets by Asset Categories) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	$ 5,274	$ 5,283	$ 5,040
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	3,229	3,504
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	2,045	1,779
US equities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	872	431
US equities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	872	431
International equities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	839	648
International equities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	839	648
Real estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	91	84
Real estate [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	91	84
Fixed income securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	665	1,537
Fixed income securities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	665	1,537
Corporate Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	2,045	1,779
Corporate Bonds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	2,045	1,779
Cash and cash equivalents [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	762	804
Cash and cash equivalents [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets at end of year	$ 762	$ 804