Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Common Stock Offering 1 [Member]
Activity in other borrowings:
Net proceeds from the common stock offering		$ 63,484,123
Common Stock Offering 2 [Member]
Activity in other borrowings:
Net proceeds from the common stock offering	29,828,916
Net income	13,049,956	3,654,071
Depreciation	1,552,176	1,520,380
Provision for loan/lease losses	3,270,835	4,059,121
Stock-based compensation expense	570,330	554,526
Deferred compensation expense accrued	623,831	767,292
Losses (gains) on other real estate owned, net	157,739	(69,923)
Amortization of premiums on securities, net	611,900	485,085
Securities gains, net	(376,510)	(416,933)
Loans originated for sale	(43,526,263)	(15,205,967)
Proceeds on sales of loans	45,160,830	14,532,761
Gains on sales of residential real estate loans	(144,799)	(181,675)
Gains on sales of government guaranteed portions of loans	(2,482,418)	(140,319)
Losses on debt extinguishment, net	83,197	6,894,185
Amortization of core deposit intangible	99,756	99,756
Accretion of acquisition fair value adjustments, net	(61,065)	(267,414)
Increase in cash value of bank-owned life insurance	(874,129)	(911,891)
Increase in other assets	(4,330,548)	(4,767,394)
Increase (decrease) in other liabilities	1,386,323	(1,722,759)
Net cash provided by operating activities	14,771,141	8,882,902
Net decrease (increase) in federal funds sold	(975,000)	24,225,000
Net increase in interest-bearing deposits at financial institutions	(11,293,339)	(12,348,141)
Proceeds from sales of other real estate owned	864,817	1,723,317
Purchases	(97,132,279)	(181,272,218)
Calls, maturities and redemptions	96,704,276	177,366,721
Paydowns	13,321,512	8,003,250
Sales	61,075,145	54,966,923
Purchases	(1,857,200)	(1,338,650)
Redemptions		3,431,700
Net increase in loans/leases originated and held for investment	(124,972,098)	(85,814,353)
Purchase of premises and equipment	(2,953,356)	(3,927,981)
Net cash used in investing activities	(67,217,522)	(14,984,432)
Net increase in deposit accounts	92,920,820	157,102,985
Net decrease in short-term borrowings	(93,100,968)	(99,776,818)
Term advances		5,000,000
Maturities	(9,000,000)	(22,000,000)
Net change in short-term and overnight advances	64,900,000	21,500,000
Prepayments	(10,524,197)	(81,192,185)
Maturities and scheduled principal payments		(7,350,000)
Prepayments	(10,759,000)	(29,177,000)
Retirement of junior subordinated debentures	(3,955,000)
Payment of cash dividends on common stock	(939,456)	(315,954)
Net proceeds from the common stock offering	914,099	586,178
Net cash provided by financing activities	60,285,214	7,861,329
Net increase in cash and due from banks	7,838,833	1,759,799
Cash and due from banks, beginning	41,742,321	38,235,019
Cash and due from banks, ending	49,581,154	39,994,818
Supplemental disclosure of cash flow information, cash payments for:
Interest	5,852,789	7,903,945
Income/franchise taxes	4,869,300	1,940,275
Supplemental schedule of noncash investing activities:
Change in accumulated other comprehensive income, unrealized gains (losses) on securities available for sale and derivative instruments, net	3,706,044	(158,056)
Exchange of shares of common stock in connection with payroll taxes for restricted stock and in connection with stock options exercised	(88,911)	(68,706)
Tax benefit of nonqualified stock options exercised	110,366	31,478
Transfers of loans to other real estate owned	51,000	837,782
Due to broker for purchases of securities	(1,500,000)
Tax basis adjustment related to the acquisition of noncontrolling interest in m2 Lease Funds	$ 2,132,415