Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 5,004,698	$ 3,014,770
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	1,285,282	1,294,578
Provision for loan/lease losses	2,739,885	2,979,418
Amortization of offering costs on subordinated debentures	7,158	7,158
Stock-based compensation expense	397,927	371,436
Losses on sales of other real estate owned, net	132,754	444,648
Amortization of premiums on securities, net	1,704,629	1,804,503
Securities gains	(1,028,914)
Other-than-temporary impairment losses on securities	118,847
Loans originated for sale	(43,161,215)	(49,278,922)
Proceeds on sales of loans	56,509,458	50,299,970
Gains on sales of loans, net	(1,514,821)	(722,132)
Prepayment fees on Federal Home Loan Bank advances	832,099
Losses on lease residual values		617,000
Increase in accrued interest receivable	(119,254)	(27,941)
Decrease in prepaid FDIC insurance	1,057,784	1,199,523
Increase in cash value of bank-owned life insurance	(701,053)	(620,656)
Decrease (increase) in other assets	1,952,742	(2,468,908)
(Decrease) increase in other liabilities	(537,175)	526,158
Net cash provided by operating activities	24,680,831	9,440,603
CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease (increase) in federal funds sold	53,960,000	(27,591,667)
Net decrease (increase) in interest-bearing deposits at financial institutions	12,452,616	(903,164)
Proceeds from sales of foreclosed assets	2,618,237	1,674,345
Activity in securities portfolio:
Purchases	(299,119,217)	(190,707,222)
Calls, maturities and redemptions	162,834,446	140,067,000
Paydowns	2,430,154	234,858
Sales	45,725,084
Activity in restricted investment securities:
Purchases	(57,300)	(1,371,950)
Redemptions	1,266,800	94,500
Activity in bank-owned life insurance:
Purchases	(7,000,000)	(3,150,000)
Surrender of policy		609,772
Net (increase) decrease in loans/leases originated and held for investment	(31,137,089)	25,831,974
Purchase of premises and equipment	(700,230)	(1,843,505)
Net cash used in investing activities	(56,726,499)	(57,055,059)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposit accounts	99,498,515	30,933,114
Net decrease in short-term borrowings	(18,759,955)	(17,864,384)
Activity in Federal Home Loan Bank advances:
Advances		30,000,000
Calls and maturities	(19,000,000)	(12,100,000)
Prepayments	(15,832,099)
Net (decrease) increase in other borrowings	(9,154,734)	13,475,122
Proceeds from issuance of Series A Subordinated Notes and detachable warrants to purchase 54,000 shares of common stock		2,700,000
Payment of cash dividends on common and preferred stock	(2,014,345)	(2,029,809)
Proceeds from issuance of Series E Noncumulative Convertible Perpetual Preferred Stock, net		3,203,433
Proceeds from issuance of common stock, net	358,153	129,603
Net cash provided by financing activities	35,095,535	48,447,079
Net increase in cash and due from banks	3,049,867	832,623
Cash and due from banks, beginning	42,030,806	35,878,046
Cash and due from banks, ending	45,080,673	36,710,669
Supplemental disclosure of cash flow information, cash payments for:
Interest	12,824,212	15,759,012
Income/franchise taxes	1,162,609	1,472,491
Supplemental schedule of noncash investing activities:
Change in accumulated other comprehensive income, unrealized gains on securities available for sale, net	1,064,174	3,706,944
Transfers of loans to other real estate owned	$ 4,646,402	$ 2,847,342