Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Interest income:
Interest and fees on loans	$ 45,399	$ 41,803	$ 42,146
Interest on investment securities:
Taxable	9,819	8,329	8,073
Exempt from federal income tax	1,194	370	963
Interest on certificates of deposit investments	78	110	55
Interest on federal funds sold	69	85	66
Interest on deposits with other financial institutions	213	186	106
Total interest income	56,772	50,883	51,409
Interest expense:
Interest on deposits	6,725	8,471	12,970
Interest on securities sold under agreements to repurchase	172	133	129
Interest on FHLB advances	765	1,090	1,612
Interest on other borrowings	72	9	22
Interest on subordinated debt	770	1,053	1,104
Total interest expense	8,504	10,756	15,837
Net interest income	48,268	40,127	35,572
Provision for loan losses	3,101	3,737	3,594
Net interest income after provision for loan losses	45,167	36,390	31,978
Other income:
Trust revenues	3,030	2,601	2,229
Brokerage commissions	650	536	424
Insurance commissions	1,786	1,779	1,912
Service charges	4,817	4,662	4,952
Securities gains, net	486	543	637
Total other-than-temporary impairment losses on securities	(886)	(2,829)	(2,465)
Portion of loss recognized in other comprehensive loss (before taxes)	0	1,411	653
Other-than-temporary impairment losses recognized in earnings	(886)	(1,418)	(1,812)
Gain on sale of merchant banking portfolio	0	0	1,000
Mortgage banking revenue, net	788	776	664
ATM / debit card income	3,483	2,869	2,333
Other income	1,633	1,472	1,116
Total other income	15,787	13,820	13,455
Other expense:
Salaries and employee benefits	22,247	18,649	16,830
Net occupancy and equipment expense	7,960	5,851	4,989
Net other real estate owned expense	1,471	1,076	470
FDIC insurance expense	1,167	1,508	1,943
Amortization of other intangible assets	1,134	814	730
Stationery and supplies	581	610	563
Legal and professional	2,070	2,361	2,021
Marketing and promotion	1,050	940	963
Other expense	5,373	5,118	4,703
Total other expense	43,053	36,927	33,212
Income before income taxes	17,901	13,283	12,221
Income taxes	6,529	4,522	4,007
Net income	11,372	8,761	8,214
Dividends on preferred shares	3,576	2,240	1,821
Net income available to common stockholders	$ 7,796	$ 6,521	$ 6,393
Per common share data:
Basic earnings per share (in dollars per share)	$ 1.29	$ 1.07	$ 1.04
Diluted earnings per share (in dollars per share)	$ 1.29	$ 1.07	$ 1.04
Cash dividends per share (in dollars per share)	$ 0.40	$ 0.38	$ 0.38