Condensed Consolidated Statements of Income and Comprehensive Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest income:
Interest and fees on loans, including loans held for sale	$ 40,910	$ 36,577
Interest and dividends on securities
Taxable	3,163	2,470
Tax exempt	678	697
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock	296	333
Interest on Federal Reserve Bank deposits	786	439
Other, including interest on federal funds sold	56	64
Total interest income	45,889	40,580
Interest expense:
Interest on deposits	8,075	4,872
Interest on repurchase agreements and federal funds purchased	1,156	635
Interest on advances from Federal Home Loan Bank	39	2
Interest on long-term debt	636	480
Total interest expense	9,906	5,989
Net interest income	35,983	34,591
Provision for loan losses	190	946
Net interest income after provision for loan losses	35,793	33,645
Noninterest income:
Service charges on deposit accounts	6,120	6,221
Gains on sales of loans, net	330	279
Trust and wealth management income	2,575	2,958
Loan related fees	573	1,144
Bank owned life insurance	558	1,764
Brokerage revenue	261	283
Securities gains (losses)	356	(288)
Other noninterest income	1,397	949
Total noninterest income	12,170	13,310
Noninterest expense:
Officer salaries and employee benefits	3,374	3,214
Other salaries and employee benefits	12,585	12,405
Occupancy, net	2,051	2,116
Equipment	739	717
Data processing	1,763	1,636
Bank franchise tax	1,715	1,701
Legal fees	430	474
Professional fees	531	502
Advertising and marketing	792	732
FDIC insurance	177	314
Other real estate owned provision and expense	771	939
Repossession expense	377	409
Amortization of limited partnership investments	777	500
Other noninterest expense	3,001	3,022
Total noninterest expense	29,083	28,681
Income before income taxes	18,880	18,274
Income taxes	3,941	2,460
Net income	14,939	15,814
Unrealized holding gains (losses) on securities available-for-sale:
Unrealized holding gains (losses) arising during the period	6,124	(5,498)
Less: Reclassification adjustments for realized gains included in net income	1	149
Tax expense (benefit)	1,286	(1,186)
Other comprehensive income (loss), net of tax	4,837	(4,461)
Comprehensive income	$ 19,776	$ 11,353
Basic earnings per share (in dollars per share)	$ 0.84	$ 0.89
Diluted earnings per share (in dollars per share)	$ 0.84	$ 0.89
Weighted average shares outstanding-basic (in shares)	17,712	17,671
Weighted average shares outstanding-diluted (in shares)	17,723	17,687