Fair Value Measurements on a Non-Recurring Basis (Details) - Nonrecurring Measurements - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets with a recorded change from re-measuring at fair value on a non-recurring basis
Other real estate owned	$ 7,839	$ 7,609
Collateral-dependent impaired loans, net of ALLL	5,664	12,938
Total assets measured at fair value on a non-recurring basis	13,503	20,547
Level 1
Assets with a recorded change 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 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 from re-measuring at fair value on a non-recurring basis
Other real estate owned	7,839	7,609
Collateral-dependent impaired loans, net of ALLL	5,664	12,938
Total assets measured at fair value on a non-recurring basis	$ 13,503	$ 20,547