Fair Value Measurements on a Non-Recurring Basis (Details) - Non-Recurring Measurements - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	$ 204	$ 1,011
Collateral-dependent impaired loans, net of ALLL	8	6,985
Total assets measured at fair value on a non-recurring basis	212	7,996
Level 1
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	0	0
Collateral-dependent impaired loans, net of ALLL	0	0
Total assets measured at fair value on a non-recurring basis	0	0
Level 2
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	0	0
Collateral-dependent impaired loans, net of ALLL	0	0
Total assets measured at fair value on a non-recurring basis	0	0
Level 3
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	204	1,011
Collateral-dependent impaired loans, net of ALLL	8	6,985
Total assets measured at fair value on a non-recurring basis	$ 212	$ 7,996