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Note 3 - Loans Leases Receivable (Details Textual) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) | Dec. 31, 2015 USD ($)
Residential Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | $ 110,702 |  | $ 110,702 |  | $ 119,305
Residential Portfolio Segment [Member] |  |  |  |  |
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Mortgage | 1,377,875 |  | 1,377,875 |  | 565,850
Financing Receivable, Recorded Investment, Nonaccrual Status | 1,677,217 |  | 1,677,217 |  | 1,016,743
Commercial Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 2,241,205 |  | 2,241,205 |  | 1,164,423
Commercial Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 6,507,205 |  | 6,507,205 |  | 5,791,975
Commercial Real Estate Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 1,937,655 |  | 1,937,655 |  | 193,804
Finance Leases Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 463,859 |  | 463,859 |  | 42,098
Finance Leases Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 2,188,166 |  | 2,188,166 |  | 1,701,341
Consumer Portfolio Segment [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 105,999 |  | 105,999 |  | 14,027
Consumer Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 190,022 |  | 190,022 |  | 109,117
Troubled Debt Restructurings [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 4,859,420 |  | $ 4,859,420 |  | 1,533,657
Financing Receivable, Modifications, Number of Contracts |  |  | 1 |  |
Nonaccrual [Member] |  |  |  |  |
Financing Receivable, Modifications, Number of Contracts |  |  | 2 |  |
Financing Receivable, Modifications, Post-Modification Recorded Investment |  |  | $ 1,384,680 |  |
Losses on Residual Value | $ 0 | $ 0 | $ 0 | $ 0 |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 0 | 0 | 0 | 0 |
Financing Receivable, Recorded Investment, Nonaccrual Status | $ 14,370,653 |  | $ 14,370,653 |  | 10,648,211
Financing Receivable, Modifications, Recorded Investment | $ 6,684,905 |  | $ 6,684,905 |  | $ 2,587,413
Financing Receivable, Modifications, Number of Contracts | 2 | 1 | 13 | 1 |
Financing Receivable, Modifications, Post-Modification Recorded Investment | $ 461,643 | $ 14,203 | $ 2,530,491 | $ 14,203 |
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down |  |  | $ 236,545 |  |

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524 + Details
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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524 + Details
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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Recorded Investment -URI http://asc.fasb.org/extlink&oid=65880944 + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524 + Details
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- Definition Amount, after allowance for bad debt, of mortgage loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522 + Details
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