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Note 3 - Loans Leases Receivable - Troubled Debt Restructurings (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($)
Number of Loans / Leases | 8 | 2 | 36 | 13
Pre-Modification Recorded Investment | $ 1,037,049 | $ 461,643 | $ 2,795,032 | $ 2,530,491
Post-Modification Recorded Investment | 1,037,049 | 461,643 | 2,795,032 | 2,530,491
Specific Allowance |  |  |  |
Extended Maturity [Member] |  |  |  |
Number of Loans / Leases | 8 | 2 | 2 | 5
Pre-Modification Recorded Investment | $ 1,037,049 | $ 461,643 | $ 104,382 | $ 462,939
Post-Modification Recorded Investment | 1,037,049 | 461,643 | 104,382 | 462,939
Specific Allowance |  |  |  |
Payment Deferral [Member] |  |  |  |
Number of Loans / Leases |  |  | 34 | 7
Pre-Modification Recorded Investment |  |  | $ 2,690,650 | $ 833,812
Post-Modification Recorded Investment |  |  | 2,690,650 | 833,812
Specific Allowance |  |  |  |
Interest Rate Below Market Reduction [Member] |  |  |  |
Number of Loans / Leases |  |  |  | 1
Pre-Modification Recorded Investment |  |  |  | $ 1,233,740
Post-Modification Recorded Investment |  |  |  | 1,233,740
Specific Allowance |  |  |  |
Commercial Portfolio Segment [Member] | Extended Maturity [Member] |  |  |  |
Number of Loans / Leases | 4 |  |  | 1
Pre-Modification Recorded Investment | $ 620,452 |  |  | $ 52,286
Post-Modification Recorded Investment | 620,452 |  |  | 52,286
Specific Allowance |  |  |  |
Commercial Portfolio Segment [Member] | Payment Deferral [Member] |  |  |  |
Number of Loans / Leases |  |  | 7 | 1
Pre-Modification Recorded Investment |  |  | $ 801,650 | $ 62,140
Post-Modification Recorded Investment |  |  | 801,650 | 62,140
Specific Allowance |  |  |  |
Commercial Portfolio Segment [Member] | Interest Rate Below Market Reduction [Member] |  |  |  |
Number of Loans / Leases |  |  |  | 1
Pre-Modification Recorded Investment |  |  |  | $ 1,233,740
Post-Modification Recorded Investment |  |  |  | 1,233,740
Specific Allowance |  |  |  |
Finance Leases Portfolio Segment [Member] | Extended Maturity [Member] |  |  |  |
Number of Loans / Leases | 4 | 2 | 2 | 4
Pre-Modification Recorded Investment | $ 416,597 | $ 461,643 | $ 104,382 | $ 410,653
Post-Modification Recorded Investment | 416,597 | 461,643 | 104,382 | 410,653
Specific Allowance |  |  |  |
Finance Leases Portfolio Segment [Member] | Payment Deferral [Member] |  |  |  |
Number of Loans / Leases |  |  | 27 | 6
Pre-Modification Recorded Investment |  |  | $ 1,889,000 | $ 771,672
Post-Modification Recorded Investment |  |  | 1,889,000 | 771,672
Specific Allowance |  |  |  |

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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=84173941&loc=SL6953676-111524 + Details
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