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Note 4 - Loans Leases Receivable - Troubled Debt Restructurings (Details) | 12 Months Ended
--- | ---
Dec. 31, 2018 USD ($) loan | Dec. 31, 2017 USD ($) loan
Number of Loans / Leases | 14 | 35
Pre-Modification Recorded Investment | $ 4,122,953 | $ 2,752,344
Post-Modification Recorded Investment | 4,122,953 | 2,752,344
Specific Allowance | $ 1,810,449 | $ 62,596
Payment Deferral [Member] |  |
Number of Loans / Leases | loan | 10 | 32
Pre-Modification Recorded Investment | $ 1,047,035 | $ 2,637,108
Post-Modification Recorded Investment | 1,047,035 | 2,637,108
Specific Allowance | $ 310,000 | $ 62,596
Payment Deferral [Member] | Owner Occupied Commercial Real Estate Loans [Member] |  |
Number of Loans / Leases | loan |  | 1
Pre-Modification Recorded Investment |  | $ 107,322
Post-Modification Recorded Investment |  | $ 107,322
Payment Deferral [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member] |  |
Number of Loans / Leases | loan | 1 |
Pre-Modification Recorded Investment | $ 500,000 |
Post-Modification Recorded Investment | 500,000 |
Specific Allowance | $ 60,000 |
Extended Maturity [Member] |  |
Number of Loans / Leases | loan | 4 | 3
Pre-Modification Recorded Investment | $ 3,075,918 | $ 115,236
Post-Modification Recorded Investment | 3,075,918 | $ 115,236
Specific Allowance | $ 1,500,449 |
Extended Maturity [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member] |  |
Number of Loans / Leases | loan | 2 |
Pre-Modification Recorded Investment | $ 2,975,703 |
Post-Modification Recorded Investment | 2,975,703 |
Specific Allowance | $ 1,492,057 |
Finance Leases Portfolio Segment [Member] | Payment Deferral [Member] |  |
Number of Loans / Leases | loan | 3 | 24
Pre-Modification Recorded Investment | $ 75,066 | $ 1,703,255
Post-Modification Recorded Investment | $ 75,066 | $ 1,703,255
Finance Leases Portfolio Segment [Member] | Extended Maturity [Member] |  |
Number of Loans / Leases | loan |  | 3
Pre-Modification Recorded Investment |  | $ 115,236
Post-Modification Recorded Investment |  | $ 115,236
Commercial Portfolio Segment [Member] | Payment Deferral [Member] |  |
Number of Loans / Leases | loan | 5 | 7
Pre-Modification Recorded Investment | $ 425,649 | $ 826,531
Post-Modification Recorded Investment | 425,649 | 826,531
Specific Allowance | $ 250,000 | $ 62,596
Residential Portfolio Segment [Member] | Payment Deferral [Member] |  |
Number of Loans / Leases | loan | 1 |
Pre-Modification Recorded Investment | $ 46,320 |
Post-Modification Recorded Investment | $ 46,320 |
Residential Portfolio Segment [Member] | Extended Maturity [Member] |  |
Number of Loans / Leases | loan | 2 |
Pre-Modification Recorded Investment | $ 100,215 |
Post-Modification Recorded Investment | 100,215 |
Specific Allowance | $ 8,392 |

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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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