Fair Value Measurements (Assets and Liabilities Measured on Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Securities available for sale:
Available-for-sale Securities, Fair Value Disclosure	$ 183,259	$ 196,955
U.S. Government Agencies [Member]
Securities available for sale:
Available-for-sale Securities, Fair Value Disclosure	41,913	45,332
Mortgage-backed [Member]
Securities available for sale:
Available-for-sale Securities, Fair Value Disclosure	141,346	150,965
Equity [Member]
Securities available for sale:
Available-for-sale Securities, Fair Value Disclosure	651	658
Fair Value, Inputs, Level 2 [Member]
Securities available for sale:
Available-for-sale Securities, Fair Value Disclosure	183,259	196,955
Fair Value, Inputs, Level 2 [Member] | U.S. Government Agencies [Member]
Securities available for sale:
Available-for-sale Securities, Fair Value Disclosure	41,913	45,332
Fair Value, Inputs, Level 2 [Member] | Mortgage-backed [Member]
Securities available for sale:
Available-for-sale Securities, Fair Value Disclosure	141,346	150,965
Fair Value, Inputs, Level 2 [Member] | Equity [Member]
Securities available for sale:
Available-for-sale Securities, Fair Value Disclosure	$ 651	$ 658