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Note 3 - Loans Leases Receivable (Details Textual) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 USD ($) | Dec. 31, 2016 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($)
Financing Receivable, Recorded Investment, Nonaccrual Status | $ 13,217,409 | $ 13,919,066 |  |  | $ 13,217,409 |
Financing Receivable, Modifications, Recorded Investment | $ 9,083,036 | 8,647,007 |  |  | $ 9,083,036 |
Financing Receivable, Modifications, Number of Contracts | 17 |  |  | 7 | 28 | 12
Financing Receivable, Modifications, Post-Modification Recorded Investment | $ 948,170 |  |  | $ 1,842,858 | $ 1,757,983 | $ 2,299,450
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down |  | 195,000 |  |  |  |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 2 |  |  | 0 | 2 | 0
Losses on Residual Value | $ 0 |  |  | $ 0 | $ 0 | $ 0
Nonaccrual [Member] |  |  |  |  |  |
Financing Receivable, Modifications, Number of Contracts |  |  |  |  | 0 | 1
Financing Receivable, Modifications, Post-Modification Recorded Investment |  |  |  |  |  | $ 1,233,740
Troubled Debt Restructurings [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 2,167,863 | $ 2,300,479 |  |  | $ 2,167,863 |
Financing Receivable, Modifications, Number of Contracts |  | 2 |  |  |  |
Residential Portfolio Segment [Member] |  |  |  |  |  |
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Mortgage | 705,800 | $ 1,135,500 |  |  | 705,800 |
Financing Receivable, Recorded Investment, Nonaccrual Status | 1,047,911 | 1,075,639 | [1] |  | 1,047,911 |
Residential Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 41,465 | 43,579 |  |  | 41,465 |
Commercial Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 4,074,004 | 4,187,786 | [1] |  | 4,074,004 |
Commercial Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 268,629 | 48,501 |  |  | 268,629 |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 4,347,017 | 4,353,819 | [1] |  | 4,347,017 |
Commercial Real Estate Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 1,148,818 | 1,380,047 |  |  | 1,148,818 |
Commercial Real Estate Portfolio Segment [Member] | Troubled Debt Restructurings [Member] | Construction Loans [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 179,881 |  |  |  | 179,881 |
Finance Leases Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 2,047,694 | 2,446,181 | [1] |  | 2,047,694 |
Finance Leases Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 519,178 | 816,149 |  |  | 519,178 |
Consumer Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 223,708 | 87,344 | [1] |  | 223,708 |
Consumer Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | $ 9,892 | $ 12,203 |  |  | $ 9,892 |
[1] | Nonaccrual loans/leases included $2,300,479 of TDRs, including $48,501 in C&I loans, $1,380,047 in CRE loans, $816,149 in direct financing leases, $43,579 in residential real estate loans, and $12,203 in installment loans.

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