Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Interest income:
Interest and fees on loans	$ 44,799	$ 42,184	$ 43,949
Taxable	7,499	9,153	9,970
Exempt from federal income tax	2,352	2,069	1,714
Interest on certificates of deposit investments	0	14	57
Interest on federal funds sold	1	6	37
Interest on deposits with other financial institutions	83	33	40
Total interest income	54,734	53,459	55,767
Interest expense:
Interest on deposits	2,351	2,703	4,843
Interest on securities sold under agreements to repurchase	47	46	117
Interest on FHLB borrowings	339	254	308
Interest on other borrowings	1	9	326
Interest on subordinated debentures	514	523	563
Total interest expense	3,252	3,535	6,157
Net interest income	51,482	49,924	49,610
Provision charged to expense	629	2,193	2,647
Net interest income after provision for loan losses	50,853	47,731	46,963
Other income:
Trust revenues	3,571	3,565	3,330
Brokerage commissions	1,039	833	688
Insurance commissions	1,796	1,638	1,813
Service charges	5,264	4,865	4,808
Securities gains, net	715	2,293	934
Total other-than-temporary impairment recoveries	0	0	127
Portion of loss recognized in other comprehensive loss	0	0	0
Other-than-temporary impairment recoveries recognized in earnings	0	0	127
Mortgage banking revenue, net	596	935	1,509
ATM / debit card revenue	3,915	3,772	3,554
Other income	(1,473)	(1,440)	(1,547)
Total other income	18,369	19,341	18,310
Other expense:
Salaries and employee benefits	24,771	24,128	23,433
Net occupancy and equipment expense	8,347	8,223	8,088
Net other real estate owned expense	23	163	390
Amortization of intangible assets	804	832	875
Amortization of intangible assets	643	674	773
Stationery and supplies	646	603	609
Legal and professional	2,333	2,070	2,093
Marketing and donations	1,015	1,221	1,014
Other expense	5,925	5,590	5,563
Total other expense	44,507	43,504	42,838
Income before income taxes	24,715	23,568	22,435
Income taxes	9,254	8,846	8,410
Net income	15,461	14,722	14,025
Dividends on preferred shares	4,152	4,417	4,252
Net income available to common stockholders	$ 11,309	$ 10,305	$ 9,773
Per share data:
Basic net income per common share available to common stockholders	$ 1.88	$ 1.74	$ 1.62
Diluted earnings per common share	$ 1.85	$ 1.73	$ 1.62
Cash dividends declared per common share	$ 0.55	$ 0.46	$ 0.42