Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and due from banks, including required reserves of $14,083 and $7,990, respectively	$ 46,297	$ 26,775
Interest-bearing deposits in banks	20,276	56,128
Federal funds sold	7,000	400
Time deposits held in banks	881	710
Securities available-for-sale, at fair value (cost of $412,065 at December 31, 2012 and $355,496 at December 31, 2011)	424,617	367,241
Securities held-to-maturity (estimated fair value of $156,924 at December 31, 2012 and $101,131 at December 31, 2011)	153,524	100,472
Other investments	8,310	5,637
Loans	1,046,940	746,305
Allowance for loan losses	(7,370)	(7,276)
Loans, net	1,039,570	739,029
Bank premises and equipment, net	63,461	44,598
Accrued interest receivable	6,691	5,607
Goodwill	42,781	24,959
Intangibles	9,047	7,147
Cash surrender value of life insurance	13,183	4,853
Other real estate	7,496	7,369
Other assets	8,594	5,831
Total assets	1,851,728	1,396,756
Deposits:
Noninterest-bearing	380,557	254,755
Interest-bearing	1,171,347	910,051
Total deposits	1,551,904	1,164,806
Securities sold under agreements to repurchase	41,447	46,078
Notes payable	29,128	0
Junior subordinated debentures	29,384	15,465
Other liabilities	10,624	8,570
Total liabilities	1,662,487	1,234,919
Commitments and contingencies
Stockholders' equity:
Common stock, $0.10 par value; 30,000,000 shares authorized, 11,386,611 and 10,615,983 issued and 11,236,134 and 10,465,506 outstanding at December 31, 2012 and December 31, 2011, respectively	1,139	1,062
Additional paid-in capital	110,603	98,842
Accumulated other comprehensive income	8,159	7,752
Treasury stock- 150,477 shares at December 31, 2012 and 2011, at cost	(3,286)	(3,286)
Retained earnings	30,629	25,467
Total stockholders' equity	189,241	161,837
Total liabilities and stockholders' equity	1,851,728	1,396,756
Preferred Stock Series B [Member]
Stockholders' equity:
Preferred stock	32,000	32,000
Preferred Stock Series C [Member]
Stockholders' equity:
Preferred stock	$ 9,997	$ 0