Other Noninterest Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Noninterest Expenses
Data processing fees	$ 1,974	$ 1,818	$ 3,896	$ 3,645
Professional fees	789	779	1,353	1,517
Marketing and advertising expenses	435	383	808	843
Travel and educational expenses	304	300	706	671
Telecommunication expenses	330	333	648	679
All other noninterest expenses	2,074	2,051	4,075	4,084
Total Other Noninterest Expenses	$ 5,906	$ 5,664	$ 11,486	$ 11,439