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Note 1 - Nature of Business and Significant Accounting Policies (Details) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
May. 13, 2013 | Dec. 31, 2015 USD ($) shares | Dec. 31, 2014 USD ($) shares | Dec. 31, 2013 USD ($) shares | Aug. 27, 2012 | Aug. 31, 2005
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Number of Non-Consolidated Subsidiaries Issuing Trust Preferred Securities |  | 6 |  |  |  |
Cash Reserve Deposit Required and Made |  | $ 30,532,000 | $ 23,251,000 |  |  |
Initial Direct Leasing Costs As a Percentage of Cost |  | 5.50% |  |  |  |
Financing Receivable, Lines of Credit Maximum Term |  | 365 days |  |  |  |
Commercial Real Estate Owner Occupied, Percentage |  | 35.00% | 37.00% |  |  |
Lending Threshold Requiring Additional Loan Review |  | $ 1,000,000 |  |  |  |
Mortgage Loans in Process of Foreclosure, Amount |  | 685,000 | $ 170,000 |  |  |
Real Estate Acquired Through Foreclosure |  | 7,150,658 | 12,767,636 |  |  |
Swap Fee Income |  | $ 1,717,552 | $ 154,800 | $ 104,560 |  |
Preferred Stock, Shares Authorized (in Shares) | shares |  | 250,000 | 250,000 |  |  |
Preferred Stock, Shares Outstanding (in Shares) | shares |  | 0 | 0 |  |  |
Allocated Share-based Compensation Expense |  | $ 941,469 | $ 891,619 | $ 792,279 |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized |  | $ 721,916 |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition |  | 2 years 102 days |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in Shares) | shares |  | 405,832 | 420,429 | 419,735 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value |  | $ 6,500,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value |  | 4,600,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value |  | $ 480,354 | $ 173,105 | $ 268,920 |  |
Commercial Portfolio Segment [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Financing Receivable, Term Loans, Generally Maximum Term |  | 7 years |  |  |  |
Commercial Real Estate Portfolio Segment [Member] | Other Non Owner-occupied Commercial Real Estate Loans [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Loan and Leases Recievable, Lending Limits |  | 300.00% |  |  |  |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Loan and Leases Recievable, Lending Limits |  | 100.00% |  |  |  |
Residential Portfolio Segment [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Real Estate Acquired Through Foreclosure |  | $ 471,000 | 54,000 |  |  |
In The Money Options [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in Shares) | shares |  | 623,176 |  |  |  |
Community National Bancorporation and Community National Bank [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Number of Subsidiaries Assumed Through Business Acquisition | 2 |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 100.00% |  |  |  |  |
M2 Lease Funds LLC [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  | 20.00% | 80.00%
Other Assets [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Other Repossessed Assets |  | $ 246,612 | $ 154,528 |  |  |
Ruhl Mortgage [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | 20.00% |  |  |  |
Subsidiaries [Member] | Fixed Rate Residential Mortgage [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Financing Receivable, Term |  | 15 years |  |  |  |
Core Deposits [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 10 years |  |  |  |
Core Deposits [Member] | Community National Bancorporation and Community National Bank [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years |  |  |  |  |
Minimum [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Residual Value Percent of Cost |  | 3.00% |  |  |  |
Minimum [Member] | Commercial Portfolio Segment [Member] | Term Loan [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Financing Receivable, Term |  | 3 years |  |  |  |
Minimum [Member] | Subsidiaries [Member] | Adjustable Rate Residential Mortgage [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Financing Receivable, Term |  | 1 year |  |  |  |
Maximum [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Residual Value Percent of Cost |  | 25.00% |  |  |  |
Maximum [Member] | Commercial Portfolio Segment [Member] | Term Loan [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Financing Receivable, Term |  | 5 years |  |  |  |
Maximum [Member] | Special Mention [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Financing Receivable, Credit Weaknesses Borrowers, Term |  | 1 year |  |  |  |
Maximum [Member] | Subsidiaries [Member] | Adjustable Rate Residential Mortgage [Member] |  |  |  |  |  |
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |
Financing Receivable, Term |  | 5 years |  |  |  |

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