Employee Benefit Plans (Schedule of Fair Value Measurement of Pension Plan) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Fair value [Member]
Fair value of plan assets	$ 1,590		$ 1,431
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	1,494		1,347
Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets	96		84
Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets
Large Cap Value [Member] | Fair value [Member]
Fair value of plan assets	103	[1]	84	[1]
Large Cap Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	103	[1]	84	[1]
Large Cap Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets		[1]		[1]
Large Cap Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[1]		[1]
Large Cap Core [Member] | Fair value [Member]
Fair value of plan assets	139	[2]	112	[2]
Large Cap Core [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	139	[2]	112	[2]
Large Cap Core [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets		[2]		[2]
Large Cap Core [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[2]		[2]
Mid Cap Core [Member] | Fair value [Member]
Fair value of plan assets	131	[3]	105	[3]
Mid Cap Core [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	131	[3]	105	[3]
Mid Cap Core [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets		[3]		[3]
Mid Cap Core [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[3]		[3]
Small-Cap Core [Member] | Fair value [Member]
Fair value of plan assets	63	[4]	53	[4]
Small-Cap Core [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	63	[4]	53	[4]
Small-Cap Core [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets		[4]		[4]
Small-Cap Core [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[4]		[4]
International Core [Member] | Fair value [Member]
Fair value of plan assets	264	[5]	253	[5]
International Core [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	264	[5]	253	[5]
International Core [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets		[5]		[5]
International Core [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[5]		[5]
Large Cap Growth [Member] | Fair value [Member]
Fair value of plan assets	202	[6]	169	[6]
Large Cap Growth [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	202	[6]	169	[6]
Large Cap Growth [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets		[6]		[6]
Large Cap Growth [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[6]		[6]
Small/Midcap Growth [Member] | Fair value [Member]
Fair value of plan assets	57	[7]	52	[7]
Small/Midcap Growth [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	57	[7]	52	[7]
Small/Midcap Growth [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets		[7]		[7]
Small/Midcap Growth [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[7]		[7]
Fixed Income-US Core [Member] | Fair value [Member]
Fair value of plan assets	172	[8]	149	[8]
Fixed Income-US Core [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	172	[8]	149	[8]
Fixed Income-US Core [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets		[8]		[8]
Fixed Income-US Core [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[8]		[8]
Intermediate Duration [Member] | Fair value [Member]
Fair value of plan assets	341	[9]	297	[9]
Intermediate Duration [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	341	[9]	297	[9]
Intermediate Duration [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets		[9]		[9]
Intermediate Duration [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[9]		[9]
Common/Collective Trusts-Equity - Large Cap Value [Member] | Fair value [Member]
Fair value of plan assets	96	[10]	84	[10]
Common/Collective Trusts-Equity - Large Cap Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets		[10]		[10]
Common/Collective Trusts-Equity - Large Cap Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets	96	[10]	84	[10]
Common/Collective Trusts-Equity - Large Cap Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets		[10]		[10]
Cash Money Market [Member] | Fair value [Member]
Fair value of plan assets	22		73
Cash Money Market [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of plan assets	22		73
Cash Money Market [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair value of plan assets
Cash Money Market [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of plan assets

[1] This category consists of a mutual fund holding 100-160 stocks, designed to track and outperform the Russell 1000 Value Index.

[2] This category contains stocks of the S&P 500 Index. The stocks are maintained in approximately the same weightings as the index.

[3] This category contains stocks of the MSCI U.S. Mid Cap 450 Index. The stocks are maintained in approximately the same weightings as the index.

[4] This category consists of 400 or more small and micro-cap companies, with as much as 25% invested in non-U.S. equities.

[5] This category consists of investments with long-term growth potential located primarily in Europe, the Pacific Basin, and other developed emerging countries.

[6] This category consists of two mutual funds, one which invests primarily of large U.S. – based growth companies, the other in fast-growing large cap growth companies with sustainable franchises and positive price momentum.

[7] This category seeks capital appreciation through investments in common stock of small-capitalization companies, defined as those with a total market value of no more than $2 billion at the time the fund first invests in them.

[8] This category consists of a passively managed portfolio modeled after the Barclays Capital US Aggregate Float Adjusted Index. The fund invests in Treasury, Agency, corporate, mortgage-backed and asset-backed securities, maintaining a dollar-weighted maturity ranging between 5 and 10 years.

[9] This category consists of a pair of mutual funds which invest in diversified portfolios of high-quality bonds and other fixed income securities, including U.S. Government obligations, mortgage-related and asset-backed securities, corporate and municipal bonds, CMOs, and other securities mostly rated A or better.

[10] This category contains large-cap stocks with above-average yield. The portfolio typically holds between 60 and 70 stocks.