Condensed Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income
Loans, including fees	$ 30,746,000	$ 27,553,000	$ 86,406,000	$ 81,219,000
Securities, taxable	1,322,000	1,488,000	3,885,000	5,661,000
Securities, tax-exempt	584,000	545,000	1,709,000	1,622,000
Other interest-earning assets	382,000	120,000	641,000	240,000
Total interest income	33,034,000	29,706,000	92,641,000	88,742,000
Interest expense
Deposits	2,652,000	1,924,000	6,543,000	5,608,000
Short-term borrowings	45,000	62,000	142,000	154,000
Federal Home Loan Bank advances	1,033,000	670,000	2,690,000	1,595,000
Subordinated debentures and other borrowings	660,000	600,000	1,920,000	1,952,000
Total interest expense	4,390,000	3,256,000	11,295,000	9,309,000
Net interest income	28,644,000	26,450,000	81,346,000	79,433,000
Provision for loan losses	1,000,000	600,000	2,350,000	2,300,000
Net interest income after provision for loan losses	27,644,000	25,850,000	78,996,000	77,133,000
Noninterest income
Services charges on deposit and sweep accounts	1,076,000	1,140,000	3,148,000	3,178,000
Credit and debit card income	1,215,000	1,090,000	3,497,000	3,185,000
Mortgage banking income	1,326,000	1,236,000	3,233,000	2,578,000
Earnings on bank owned life insurance	328,000	349,000	2,394,000	933,000
Gain on trust preferred securities repurchase	0	0	0	2,970,000
Other income	660,000	1,469,000	2,226,000	3,590,000
Total noninterest income	4,605,000	5,284,000	14,498,000	16,434,000
Noninterest expense
Salaries and benefits	11,636,000	11,162,000	33,796,000	32,959,000
Occupancy	1,598,000	1,515,000	4,707,000	4,600,000
Furniture and equipment depreciation, rent and maintenance	543,000	531,000	1,625,000	1,579,000
Data processing costs	2,071,000	1,987,000	6,155,000	5,949,000
FDIC insurance costs	250,000	351,000	708,000	1,108,000
Other expense	4,112,000	4,117,000	12,877,000	12,530,000
Total noninterest expenses	20,210,000	19,663,000	59,868,000	58,725,000
Income before federal income tax expense	12,039,000	11,471,000	33,626,000	34,842,000
Federal income tax expense	3,702,000	3,626,000	10,331,000	11,014,000
Net income	$ 8,337,000	$ 7,845,000	$ 23,295,000	$ 23,828,000
Basic earnings per share (in dollars per share)	$ 0.51	$ 0.48	$ 1.41	$ 1.46
Diluted earnings per share (in dollars per share)	0.51	0.48	1.41	1.46
Cash dividends per common share (in dollars per share)	$ 0.19	$ 0.17	$ 0.55	$ 0.49
Average basic shares outstanding (in shares)	16,483,492	16,282,804	16,463,245	16,271,848
Average diluted shares outstanding (in shares)	16,494,540	16,307,350	16,474,534	16,294,093