Financial Instruments With Off-Balance-Sheet Risk and Credit Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Deposits in financial institutions in excess of amounts insured by the FDIC	$ 3,400
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Financial instrument contract amount	132,669	$ 153,806
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Financial instrument contract amount	$ 4,998	$ 3,718