Consolidated Statements of Earnings (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Interest income:
Loans, including fees	$ 12,540	$ 10,803	$ 37,298	$ 30,015
Securities And Other Investments [Abstract]
Taxable	2,048	1,407	6,265	3,538
Nontaxable	697	816	2,202	2,597
Federal funds sold	2	2	6	7
Time and interest bearing deposits in other banks	13	49	73	170
Other investments	55	43	142	116
Total interest income	15,355	13,120	45,986	36,443
Interest expense:
Deposits	1,030	1,013	3,189	2,985
Securities sold under agreements to repurchase	197	207	564	602
Junior subordinated debentures	241	242	733	726
Total interest expense	1,468	1,462	4,486	4,313
Net interest income	13,887	11,658	41,500	32,130
Provision for loan losses	300	650	1,550	3,150
Net interest income after provision for loan losses	13,587	11,008	39,950	28,980
Non-interest income:
Service charges on deposits	1,898	1,781	5,590	5,066
Gain on securities, net	69	0	204	99
ATM and debit card income	1,123	964	3,398	2,797
Other charges and fees	664	653	2,055	1,679
Total non-interest income	3,754	3,398	11,247	9,641
Non-interest expenses:
Salaries and employee benefits	6,273	5,778	18,511	15,980
Occupancy expense	2,952	2,474	8,283	6,718
FDIC insurance	242	188	695	711
Other	4,163	4,735	12,599	11,726
Total non-interest expense	13,630	13,175	40,088	35,135
Income before income taxes	3,711	1,231	11,109	3,486
Income tax expense	1,062	131	3,096	292
Net earnings	2,649	1,100	8,013	3,194
Dividends on preferred stock and accretion of warrants	400	804	1,180	1,402
Net earnings available to common shareholders	$ 2,249	$ 296	$ 6,833	$ 1,792
Earnings per share:
Basic (in dollars per share)	$ 0.21	$ 0.03	$ 0.65	$ 0.18
Diluted (in dollars per share)	$ 0.21	$ 0.03	$ 0.65	$ 0.18