Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest Income
Interest and fees on loans	$ 47,534	$ 47,907	$ 49,921
Interest on investment securities:
Taxable	8,969	10,468	11,737
Nontaxable	2,450	2,669	2,551
Interest on deposits in other banks	372	182	138
Interest on federal funds sold, securities purchased under agreements to resell, and money market mutual funds	46	10	5
Total interest income	59,371	61,236	64,352
Interest Expense
Interest on deposits	2,355	2,961	4,253
Interest on federal funds purchased and short-term securities sold under agreements to repurchase	99	50	54
Interest on securities sold under agreements to repurchase and other long-term borrowings	3,578	4,764	5,002
Interest on subordinated notes payable to unconsolidated trusts	723	866	844
Total interest expense	6,755	8,641	10,153
Net interest income	52,616	52,595	54,199
Provision for loan losses	(644)	(3,429)	(4,364)
Net interest income after provision for loan losses	53,260	56,024	58,563
Noninterest Income
Service charges and fees on deposits	7,856	7,590	7,801
Allotment processing fees	3,232	4,321	5,014
Other service charges, commissions, and fees	5,558	5,545	5,248
Trust income	2,664	2,373	2,568
Investment securities gains (losses), net	3,998	171	(63)
Gains on sale of mortgage loans, net	942	824	490
Income from company-owned life insurance	1,016	937	1,231
Gain on debt extinguishment	4,050
Legal settlement	1,450
Other	420	450	984
Total noninterest income	31,186	22,211	23,273
Noninterest Expense
Salaries and employee benefits	32,296	32,008	29,763
Occupancy expenses, net	4,742	4,776	4,881
Equipment expenses	2,785	2,602	2,498
Data processing and communications expenses	4,648	4,300	4,031
Bank franchise tax	2,421	2,426	2,421
Amortization of intangibles	0	449	405
Deposit insurance expense	841	1,536	1,746
Other real estate expenses, net	2,189	1,708	5,318
Legal expenses	474	843	856
Loss on debt extinguishment	3,776
Other	7,228	7,302	7,359
Total noninterest expense	61,400	57,950	59,278
Income before income taxes	23,046	20,285	22,558
Income tax expense	6,441	5,293	6,099
Net income	16,605	14,992	16,459
Less preferred stock dividends and discount accretion		395	1,927
Net income available to common shareholders	$ 16,605	$ 14,597	$ 14,532
Per Common Share
Net income – basic and diluted (in dollars per share)	$ 2.21	$ 1.95	$ 1.94
Cash dividends declared - common, per share (in dollars per share)	$ 0.31
Weighted Average Common Shares Outstanding
Basic and diluted (in shares)	7,504	7,494	7,483