Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ (523,818)	$ 4,177,889	$ 4,007,836	$ 3,889,215	$ 3,654,071	$ 7,897,051
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation					1,520,380	1,390,389
Provision for loan/lease losses	2,348,665		1,001,879		4,059,121	2,096,041
Stock-based compensation expense					554,526	527,017
Deferred compensation expense accrued					767,292	684,984
Losses (gains) on other real estate owned, net	(98,876)		126,657		(69,923)	144,705
Amortization of premiums on securities, net					485,085	1,002,893
Securities gains, net					(416,933)	(21,196)
Loans originated for sale					(15,205,967)	(22,215,215)
Proceeds on sales of loans					14,532,761	23,169,975
Gains on sales of residential real estate loans	(95,535)		(132,971)		(181,675)	(196,458)
Gains on sales of government guaranteed portions of loans	(69,346)		(508,168)		(140,319)	(702,187)
Losses on debt extinguishment	6,894,185				6,894,185
Amortization of core deposit intangible					99,756	99,756
Accretion of acquisition fair value adjustments, net					(267,414)	(304,876)
Increase in cash value of bank-owned life insurance					(911,891)	(842,836)
Increase in other assets					(4,862,896)	(1,622,537)
Decrease in other liabilities					(1,658,735)	(3,791,845)
Net cash provided by operating activities					8,851,424	7,315,661
CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease in federal funds sold					24,225,000	18,945,000
Net increase in interest-bearing deposits at financial institutions					(12,348,141)	(3,741,132)
Proceeds from sales of other real estate owned					1,723,317	771,902
Purchase of derivative instruments						(2,071,650)
Activity in securities portfolio:
Purchases					(181,272,218)	(36,089,884)
Calls, maturities and redemptions					177,366,721	27,756,298
Paydowns					8,003,250	12,563,485
Sales					54,966,923	25,877,578
Activity in restricted investment securities:
Purchases					(1,338,650)	(839,500)
Redemptions					3,431,700	1,520,000
Net increase in loans/leases originated and held for investment					(85,814,353)	(91,280,287)
Purchase of premises and equipment					(3,927,981)	(1,197,014)
Net cash used in investing activities					(14,984,432)	(47,785,204)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposit accounts					157,102,985	30,392,132
Net increase (decrease) in short-term borrowings					(99,776,818)	55,028,887
Activity in Federal Home Loan Bank advances:
Term advances					5,000,000
Calls and maturities					(22,000,000)	(20,350,000)
Net change in short-term and overnight advances					21,500,000	11,900,000
Prepayments	(75,500,000)				(81,192,185)
Activity in other borrowings:
Proceeds from other borrowings						10,000,000
Calls, maturities and scheduled principal payments					(7,350,000)
Prepayments					(29,177,000)	(1,000,000)
Payment of cash dividends on common and preferred stock					(315,954)	(1,649,555)
Net cash provided by financing activities					7,892,807	54,811,330
Net increase in cash and due from banks					1,759,799	14,341,787
Cash and due from banks, beginning		$ 38,235,019		$ 41,950,790	38,235,019	41,950,790	$ 41,950,790
Cash and due from banks, ending	$ 39,994,818		$ 56,292,577		39,994,818	56,292,577	$ 38,235,019
Supplemental disclosure of cash flow information, cash payments for:
Interest					7,903,945	8,376,272
Income/franchise taxes					1,940,275	3,057,500
Supplemental schedule of noncash investing activities:
Change in accumulated other comprehensive income (loss), unrealized gains (losses) on securities available for sale and derivative instruments, net					(158,056)	9,706,798
Exchange of shares of common stock in connection with payroll taxes for restricted stock and in connection with stock options exercised					(68,706)	(177,984)
Transfers of loans to other real estate owned					837,782	2,138,768
Common Stock Offering 1 [Member]
Activity in other borrowings:
Proceeds from issuance of common stock, net					63,484,123
Common Stock Offering 2 [Member]
Activity in other borrowings:
Proceeds from issuance of common stock, net					$ 617,656	313,788
Series F Noncumulative Perpetual Preferred Stock One [Member]
Activity in other borrowings:
Redemption of Cumulative Perpetual Preferred Stock, net						(15,000,000)
Series F Noncumulative Perpetual Preferred Stock Two [Member]
Activity in other borrowings:
Redemption of Cumulative Perpetual Preferred Stock, net						$ (14,823,922)