Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest and dividend income
Interest and fees on loans	$ 23,531	$ 23,416	$ 23,334
Interest on debt securities:
Taxable	950	817	543
Tax exempt	436	367	283
Dividends	43	68	63
Interest on federal funds sold and overnight deposits	15	24	32
Interest on interest bearing deposits in banks	169	160	226
Total interest and dividend income	25,144	24,852	24,481
Interest expense
Interest on deposits	1,682	1,746	1,943
Interest on short-term borrowed funds	9	5	12
Interest on long-term borrowed funds	334	404	504
Total interest expense	2,025	2,155	2,459
Net interest income	23,119	22,697	22,022
Provision for loan losses	550	345	305
Net interest income after provision for loan losses	22,569	22,352	21,717
Noninterest income
Trust income	719	726	644
Service fees	5,568	5,354	5,059
Net gains (losses) on sales of investment securities available-for-sale	53	315	(1)
Net gains on sales of loans held for sale	2,871	2,097	2,305
Other income	581	417	502
Total noninterest income	9,792	8,909	8,509
Noninterest expenses
Salaries and wages	9,517	8,916	8,964
Pension and other employee benefits	2,977	2,725	2,777
Occupancy expense, net	1,279	1,199	1,156
Equipment expense	1,875	1,674	1,597
Other expenses	6,656	7,080	6,735
Total noninterest expenses	22,304	21,594	21,229
Income before provision for income taxes	10,057	9,667	8,997
Provision for income taxes	2,179	1,973	1,862
Net income	$ 7,878	$ 7,694	$ 7,135
Earnings per common share	$ 1.77	$ 1.73	$ 1.60
Dividends per common share	$ 1.08	$ 1.04	$ 1.01