Fair Value of Financial Instruments Fair Value - Recurring and Nonrecurring (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Jun. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	$ 388,247	$ 402,309	$ 393,133
Gain (Loss) Other Real Estate and Repossessed Assets, Net	(784)		0	$ (15)
Gain (Loss) on Collateral Dependent Impaired Loans	260		687	149
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	388,247	402,309	393,133
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	388,247	402,309	393,133
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	(2,011)		0	(529)
Impaired Loans	(1,703)		(2,018)	(600)
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
Impaired Loans	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
Impaired Loans	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	(2,011)		0	(529)
Impaired Loans	(1,703)		(2,018)	$ (600)
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	157,646	155,782	151,527
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	157,646	155,782	151,527
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	49,543	52,408	74,095
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	49,543	52,408	74,095
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	49,543	52,408	74,095
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	168,110	178,588	149,510
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	168,110	178,588	149,510
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	11,715	14,299	16,756
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	11,715	14,299	16,756
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	11,715	14,299	16,756
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	1,233	1,232	1,245
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	1,233	1,232	1,245
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	1,233	1,232	1,245
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