CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest income
Loans, including fees	$ 30,918	$ 30,000	$ 27,064
Securities
Taxable	4,618	3,362	2,951
Tax exempt	2,411	2,618	2,680
Trading Assets	108	153	170
Other	604	421	320
Total interest income	38,659	36,554	33,185
Interest expense
Deposits	2,694	2,211	2,024
Repurchase agreements and other borrowings	123	108	100
Federal Home Loan Bank advances	1,697	1,620	1,579
Note payable	190	233	109
Subordinated debentures	310	254	238
Total interest expense	5,014	4,426	4,050
Net interest income	33,645	32,128	29,135
Provision for loan losses	500	1,150	1,450
Net interest income after provision for loan losses	33,145	30,978	27,685
Other income
Service charges	5,113	5,086	4,408
Loan service fee income, net	315	71	206
Trust department income	1,183	1,086	1,056
Securities gains, net	52	287	412
Gain (loss) on trading assets, net	6	(92)	(9)
Gain on sale of loans	1,727	2,098	1,488
Brokerage income	818	778	597
Debit card interchange income	3,045	2,740	2,477
Gain on sale of bank premises and equipment	1,200
Other	349	95	849
Total other income	13,808	12,149	11,484
Other expenses
Salaries and employee benefits	18,002	17,930	16,583
Occupancy expense	3,773	3,772	3,781
Repossession expense, net	208	401	416
FDIC insurance	349	526	576
Legal and professional fees	1,082	1,628	1,050
Data processing	1,714	1,627	1,427
Debit card expenses	1,667	1,311	1,287
Amortization	160	247	205
Advertising and marketing	726	925	1,003
Taxes other than payroll, property and income	1,188	1,134	904
Telephone	387	345	317
Postage	359	357	379
Loan fees	189	198	334
Acquisition expense			858
Other	3,269	3,384	2,687
Total other expenses	33,073	33,785	31,807
Income before income taxes	13,880	9,342	7,362
Provision for income taxes	3,163	773	530
Net income	$ 10,717	$ 8,569	$ 6,832
Earnings per share:
Basic (in dollars per share)	$ 3.61	$ 2.87	$ 2.40
Diluted (in dollars per share)	$ 3.61	$ 2.87	$ 2.40