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Note 3 - Loans Leases Receivable - Troubled Debt Restructurings (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 USD ($) item | Jun. 30, 2018 USD ($) lease | Jun. 30, 2017 USD ($) lease
Number of Loans / Leases | 17 | 3 | 28
Pre-Modification Recorded Investment | $ 948,170 | $ 93,844 | $ 1,757,983
Post-Modification Recorded Investment | $ 948,170 | $ 93,844 | $ 1,757,983
Extended Maturity [Member] |  |  |
Number of Loans / Leases | 1 |  | 2
Pre-Modification Recorded Investment | $ 98,119 |  | $ 104,382,000
Post-Modification Recorded Investment | $ 98,119 |  | $ 104,382,000
Payment Deferral [Member] |  |  |
Number of Loans / Leases | 16 | 3 | 26
Pre-Modification Recorded Investment | $ 850,051 | $ 93,844 | $ 1,653,601
Post-Modification Recorded Investment | $ 850,051 | $ 93,844 | $ 1,653,601
Finance Leases Portfolio Segment [Member] | Extended Maturity [Member] |  |  |
Number of Loans / Leases | 1 |  | 2
Pre-Modification Recorded Investment | $ 98,119 |  | $ 104,382
Post-Modification Recorded Investment | $ 98,119 |  | $ 104,382
Finance Leases Portfolio Segment [Member] | Payment Deferral [Member] |  |  |
Number of Loans / Leases | 15 | 2 | 23
Pre-Modification Recorded Investment | $ 802,542 | $ 47,524 | $ 1,472,403
Post-Modification Recorded Investment | $ 802,542 | $ 47,524 | $ 1,472,403
Commercial Portfolio Segment [Member] | Payment Deferral [Member] |  |  |
Number of Loans / Leases | 1 |  | 3
Pre-Modification Recorded Investment | $ 47,509 |  | $ 181,198
Post-Modification Recorded Investment | $ 47,509 |  | $ 181,198
Residential Portfolio Segment [Member] | Payment Deferral [Member] |  |  |
Number of Loans / Leases | lease |  | 1 |
Pre-Modification Recorded Investment |  | $ 46,320 |
Post-Modification Recorded Investment |  | $ 46,320 |

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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