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The term of financial receivable that are for borrowers exhibit credit weaknesses.

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Period of time between grant and maturity of financing receivable.

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Represents the initial direct leasing costs as a percentage of cost.

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Lending threshold requiring additional loan review.

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Maximum amount of financing receivables that may be that may be issued under the Company's lending policy as a percentage of total risk-based capital.

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The number of non-consolidated subsidiaries formed for the issuance of trust preferred securities.

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Represents the residual value percent of cost.

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Amount of income earned from interest rate swaps on certain commercial loans.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Cash deposited in a special reserve account for the exclusive benefit of customers pursuant to SEC Regulations.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Note 1 - Nature of Business and Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares	Aug. 27, 2012	Aug. 31, 2005 USD ($)
Number of Non-Consolidated Subsidiaries Issuing Trust Preferred Securities	6
Cash Reserve Deposit Required and Made	$ 42,233,000	$ 30,532,000
Initial Direct Leasing Costs As a Percentage of Cost	5.50%
Financing Receivable, Lines of Credit Maximum Term	1 year
Commercial Real Estate Owner Occupied, Percentage	30.00%	35.00%
Lending Threshold Requiring Additional Loan Review	$ 1,000,000
Goodwill	13,110,913	$ 3,222,688	$ 3,222,688
Swap Fee Income	$ 1,708,204	$ 1,717,552	154,800
Preferred Stock, Shares Authorized \| shares	250,000	250,000
Allocated Share-based Compensation Expense	$ 947,174	$ 941,469	$ 891,619
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 828,178
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 25 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number \| shares	385,372	405,832	420,429
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 16,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	11,800,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 1,525,902	$ 480,354	$ 173,105
Preferred Stock, Shares Outstanding \| shares	0	0
In The Money Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number \| shares	587,961
Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life	10 years
M2 Lease Funds LLC [Member]
Goodwill					$ 3,222,688
Business Acquisition, Percentage of Voting Interests Acquired				20.00%	80.00%
Community State Bank Acquisition [Member]
Goodwill	$ 9,888,225
Subsidiaries [Member] \| Fixed Rate Residential Mortgage [Member]
Financing Receivable, Term	15 years
Commercial Portfolio Segment [Member]
Financing Receivable, Term Loans, Generally Maximum Term	7 years
Commercial Real Estate Portfolio Segment [Member] \| Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loan and Leases Receivable, Lending Limits Percent	300.00%
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Loan and Leases Receivable, Lending Limits Percent	100.00%
Minimum [Member]
Residual Value Percent of Cost	3.00%
Minimum [Member] \| Subsidiaries [Member] \| Adjustable Rate Residential Mortgage [Member]
Financing Receivable, Term	1 year
Minimum [Member] \| Commercial Portfolio Segment [Member] \| Term Loan [Member]
Financing Receivable, Term	3 years
Maximum [Member]
Residual Value Percent of Cost	25.00%
Maximum [Member] \| Subsidiaries [Member] \| Adjustable Rate Residential Mortgage [Member]
Financing Receivable, Term	5 years
Maximum [Member] \| Special Mention [Member]
Financing Receivable, Credit Weaknesses Borrowers, Term	1 year
Maximum [Member] \| Commercial Portfolio Segment [Member] \| Term Loan [Member]
Financing Receivable, Term	5 years