Consolidated Statements of Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest income:
Loans, including fees	$ 68,682	$ 71,633	$ 72,327
Investment securities:
Taxable	7,924	7,559	8,100
Nontaxable	1,756	2,188	2,637
Other interest income	766	517	423
Total interest income	79,128	81,897	83,487
Interest expense:
Deposits	3,654	3,587	3,515
Short-term borrowings	966	1,017	840
Long-term borrowings	366	364	378
Junior subordinated debentures	704	613	1,074
Total interest expense	5,690	5,581	5,807
Net interest income	73,438	76,316	77,680
Provision for loan losses	10,600	13,900	5,625
Net interest income after provision for loan losses	62,838	62,416	72,055
Noninterest income:
Service charges on deposit accounts	9,612	9,523	9,780
ATM and debit card income	6,579	6,463	7,209
Gain on securities, net	20	1,243	128
Executive officer life insurance proceeds	0	0	3,000
Other charges and fees	2,797	3,092	2,843
Total noninterest income	19,008	20,321	22,960
Noninterest expenses:
Salaries and employee benefits	32,932	32,036	33,847
Occupancy expense	14,630	15,052	15,064
ATM and debit card expense	3,239	2,951	2,889
Other	17,749	17,098	16,747
Total noninterest expense	68,550	67,137	68,547
Income before income taxes	13,296	15,600	26,468
Income tax expense	3,857	4,583	7,358
Net earnings	9,439	11,017	19,110
Dividends on preferred stock	2,861	687	698
Net earnings available to common stockholders	$ 6,578	$ 10,330	$ 18,412
Earnings per common share:
Basic (in dollars per share)	$ 0.58	$ 0.91	$ 1.63
Diluted (in dollars per share)	$ 0.58	$ 0.90	$ 1.58