Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financial instruments, off-balance sheet credit risk [Abstract]
Financial instruments, off-balance sheet credit risk	$ 136,093	$ 147,432
Commitments to Extend Credit [Member]
Financial instruments, off-balance sheet credit risk [Abstract]
Financial instruments, off-balance sheet credit risk	135,015	145,888
Financial and Performance Standby Letters of Credit [Member]
Financial instruments, off-balance sheet credit risk [Abstract]
Financial instruments, off-balance sheet credit risk	$ 1,078	$ 1,544