Fair Value of Financial Instruments Fair Value - Recurring and Nonrecurring (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	$ 366,848	$ 457,606	$ 501,574
Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	366,848	457,606	501,574
Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Quoted Prices In Active Markets for Indentical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	366,848	457,606	501,574
Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate and Repossessed Assets, Net	326	144	1,175
Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis [Member] | Quoted Prices In Active Markets for Indentical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate and Repossessed Assets, Net	0	0	0
Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate and Repossessed Assets, Net	0	0	0
Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate and Repossessed Assets, Net	326	144	1,175
Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis [Member] | Total Gains (Losses) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate and Repossessed Assets, Net	(139)	(79)	(64)
U.S. Agency Obligations [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	92,186	136,475	150,046
U.S. Agency Obligations [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Quoted Prices In Active Markets for Indentical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
U.S. Agency Obligations [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	92,186	136,475	150,046
U.S. Agency Obligations [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
State and Municipal Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	102,862	127,389	130,444
State and Municipal Obligations [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	102,862	127,389	130,444
State and Municipal Obligations [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Quoted Prices In Active Markets for Indentical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
State and Municipal Obligations [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	102,862	127,389	130,444
State and Municipal Obligations [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Mortgage-Backed Securities - Residential [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	153,770	175,778	203,230
Mortgage-Backed Securities - Residential [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Quoted Prices In Active Markets for Indentical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Mortgage-Backed Securities - Residential [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	153,770	175,778	203,230
Mortgage-Backed Securities - Residential [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Corporate and Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	16,829	16,798	16,711
Corporate and Other Debt Securities [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	16,829	16,798	16,711
Corporate and Other Debt Securities [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Quoted Prices In Active Markets for Indentical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Corporate and Other Debt Securities [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	16,829	16,798	16,711
Corporate and Other Debt Securities [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Mutual Funds and Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	1,201	1,166	1,143
Mutual Funds and Equity Securities [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	1,201	1,166	1,143
Mutual Funds and Equity Securities [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Quoted Prices In Active Markets for Indentical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Mutual Funds and Equity Securities [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	1,201	1,166	1,143
Mutual Funds and Equity Securities [Member] | Fair Value of Assets and Liabilities Measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	$ 0	$ 0	$ 0