Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest income
Interest and fees on loans	$ 82,734	$ 82,951	$ 80,102
Interest on interest-bearing deposits and federal funds sold	1,128	509	364
Interest and dividends on securities
U.S. government agencies and corporations	340	327	466
Mortgage-backed securities	1,491	1,235	1,233
Tax-exempt obligations of states and political subdivisions	3,214	3,742	4,162
Taxable obligations of states and political subdivisions	242	192	184
Corporate bonds and other	444	483	538
Total interest income	89,593	89,439	87,049
Interest expense
Savings and interest-bearing deposits	1,175	1,078	1,090
Time deposits	3,573	3,314	3,104
Borrowings	3,702	3,433	3,338
Trust preferred capital notes	1,151	1,143	1,162
Total interest expense	9,601	8,968	8,694
Net interest income	79,992	80,471	78,355
Provision for loan losses	16,435	18,040	15,512
Net interest income after provision for loan losses	63,557	62,431	62,843
Noninterest income
Gains on sales of loans	8,553	8,120	6,336
Service charges on deposit accounts	4,458	4,262	4,322
Other service charges and fees	8,704	8,553	6,787
Net gains on maturities, calls and sales of available for sale securities	10	52	29
Wealth management services income	1,619	1,165	1,481
Other	3,395	3,475	1,759
Total noninterest income	26,739	25,627	20,714
Noninterest expenses
Salaries and employee benefits	43,104	41,925	38,926
Occupancy	10,778	9,660	8,828
Other	18,448	18,555	18,420
Total noninterest expenses	72,330	70,140	66,174
Income before income taxes	17,966	17,918	17,383
Income tax expense	11,394	4,459	4,853
Net income	$ 6,572	$ 13,459	$ 12,530
Net income per share - basic (in dollars per share)	$ 1.89	$ 3.90	$ 3.68
Net income – assuming dilution (in Dollars per share)	$ 1.88	$ 3.89	$ 3.68
Weighted average number of shares - basic (in shares)	3,486,510	3,454,282	3,401,426
Weighted average number of shares - assuming dilution (in shares)	3,486,589	3,455,883	3,401,834