Note 13 - Federal and State Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	2014			2013			2012
Current	$	4,203,979		$	5,639,933		$	2,232,183
Deferred		(1,165,009	)		(1,021,991	)		2,302,418
	$	3,038,970		$	4,617,942		$	4,534,601

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Years Ended December 31,
	2014						2013						2012
				% of						% of						% of
				Pretax						Pretax						Pretax
	Amount			Income			Amount			Income			Amount			Income
Computed "expected" tax expense	$	6,297,027			35.0	%	$	6,844,665			35.0	%	$	6,174,295			35.0	%
Effect of graduated tax rates		(79,529	)		(0.4	)		(123,868	)		(0.6	)		(20,775	)		(0.1	)
Tax exempt income, net		(2,646,275	)		(14.7	)		(1,790,049	)		(9.2	)		(1,243,660	)		(7.0	)
Bank-owned life insurance		(585,312	)		(3.3	)		(624,847	)		(3.2	)		(544,292	)		(3.1	)
State income taxes, net of federal benefit, current year		497,068			2.8			758,695			3.9			730,865			4.1
Change in unrecognized tax benefits		(6,395	)		-			37,180			0.2			(149,183	)		(0.8	)
Acquisition costs		-			-			248,952			1.3			-			-
Noncontrolling interests		-			-			-			-			(166,081	)		(0.9	)
Other		(437,614	)		(2.4	)		(732,786	)		(3.8	)		(246,568	)		(1.5	)
	$	3,038,970			17.0	%	$	4,617,942			23.6	%	$	4,534,601			25.7	%

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	2014			2013
Balance, beginning	$	1,058,019		$	994,078
Impact of tax positions taken during current year		234,475			288,016
Gross increase related to tax positions of prior years		16,915			16,939
Reduction as a result of a lapse of the applicable statute of limitations		(307,118	)		(241,014	)
Balance, ending	$	1,002,291		$	1,058,019

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	2014			2013
Deferred tax assets:
Alternative minimum tax credits	$	5,018,008		$	3,936,226
New markets tax credits		2,100,000			1,500,000
Net unrealized losses on securities available for sale and derivative instruments		1,186,544			8,468,118
Compensation		8,266,896			7,056,579
Loan/lease losses		7,393,437			6,890,532
Net operating loss carryforwards, federal and state		2,415,284			2,914,140
Deferred loan origination fees, net		13,536			143,949
Other		482,908			410,640
		26,876,613			31,320,184
Deferred tax liabilities:
Premises and equipment		1,216,080			1,575,582
Equipment financing leases		24,701,676			23,191,514
Acquisition fair value adjustments		1,774,157			1,319,981
Investment accretion		45,580			45,463
Other		619,121			551,080
		28,356,614			26,683,620
Net deferred tax asset (liability)	$	(1,480,001	)	$	4,636,564

Deferred Taxes in Financial Statements [Table Text Block]

	2014			2013			2012
Provision for income taxes	$	(1,165,009	)	$	(1,021,991	)	$	2,302,418
Statement of stockholders' equity- accumulated other comprehensive income (loss), unrealized gains (losses) on securities available for sale, net, and unrealized losses on derivative instruments		7,281,574			(11,373,902	)		(35,008	)
	$	6,116,565		$	(12,395,893	)	$	2,267,410