Other Income and Operating Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Other Income and Expenses [Abstract]
Reporting threshold for other income and operating expenses (percent, greater than)	1.00%
Noninterest Income
Other service charges	$ 893	$ 808
Increase in cash surrender value of corporate owned life insurance	643	517
Net gain on sale of loans	94	21
Other income	848	442
Total other income	2,478	1,788
Noninterest Expenses
Marketing expense	1,162	1,141
Professional fees	1,916	1,877
Legal fees	303	207
Technology expense	2,580	2,400
Cardholder expense	957	632
Other expenses	4,005	4,351
Total other operating expense	$ 10,923	$ 10,608