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	$ 29,932	$ 29,365	$ 30,446
Interest on interest-bearing deposits	791	532	254
Interest and dividends on securities – taxable	5,711	5,910	6,776
Interest on securities – nontaxable	4,826	5,123	5,438
Total interest income	41,260	40,930	42,914
Interest Expense
Interest on deposits	4,125	4,166	4,183
Total interest expense	4,125	4,166	4,183
Net interest income	37,135	36,764	38,731
Provision for loan losses	157	1,650	2,009
Net interest income after provision for loan losses	36,978	35,114	36,722
Noninterest Income
Service charges on deposit accounts	2,776	2,458	2,250
Other service charges and fees	205	212	215
Credit card fees	3,948	3,798	3,861
Trust income	1,530	1,346	1,229
BOLI income	758	597	603
Other income	1,148	1,289	1,295
Realized securities gains, net	14	232	33
Total noninterest income	10,379	9,932	9,486
Noninterest Expense
Salaries and employee benefits	13,746	12,792	12,522
Occupancy, furniture and fixtures	1,820	1,849	1,743
Data processing and ATM	2,275	2,186	1,657
FDIC assessment	364	476	546
Credit card processing	2,748	2,782	2,692
Intangible assets amortization	68	257	999
Net costs of other real estate owned	205	472	608
Franchise taxes	1,315	1,296	1,288
Other operating expenses	4,431	4,042	3,580
Total noninterest expense	26,972	26,152	25,635
Income before income taxes	20,385	18,894	20,573
Income tax expense	6,293	3,952	4,740
Net income	$ 14,092	$ 14,942	$ 15,833
Basic net income per common share (in dollars per share)	$ 2.03	$ 2.15	$ 2.28
Fully diluted net income per common share (in dollars per share)	$ 2.03	$ 2.15	$ 2.28