Fair Value Of Financial Instruments - Summary Of Financial Assets Measured On A Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	$ 98,067	$ 88,611
Interest rate swaps	1,232	1,647
Significant Other Observable Inputs (Level II) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	98,067	88,611
Interest rate swaps	1,232	1,647
Significant Unobservable Inputs (Level III) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0	0
U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	16,993	13,087
U.S. Government Agencies [Member] | Significant Other Observable Inputs (Level II) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	16,993	13,087
U.S. Government Agencies [Member] | Significant Unobservable Inputs (Level III) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0	0
State And Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	43,073	40,688
State And Political Subdivisions [Member] | Significant Other Observable Inputs (Level II) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	43,073	40,688
State And Political Subdivisions [Member] | Significant Unobservable Inputs (Level III) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0	0
U.S. Government-Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	35,968	32,854
U.S. Government-Sponsored Enterprises [Member] | Significant Other Observable Inputs (Level II) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	35,968	32,854
U.S. Government-Sponsored Enterprises [Member] | Significant Unobservable Inputs (Level III) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	0	0
Corporate Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	2,033	1,982
Corporate Debt [Member] | Significant Other Observable Inputs (Level II) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	2,033	1,982
Corporate Debt [Member] | Significant Unobservable Inputs (Level III) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale, at fair value	$ 0	$ 0