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Note 15 - Commitments - Maturities of Lease liabilities (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
2020 | $ 185,000 |
2020 | 458,000 |
2021 | 169,000 |
2021 | 476,000 |
2022 | 169,000 |
2022 | 478,000 |
2023 | 169,000 |
2023 | 478,000 |
2024 | 133,000 |
2024 | 478,000 |
2025 and thereafter | 174,000 |
2025 and thereafter | 2,749,000 |
Total undiscounted cash flows | 999,000 |
Total undiscounted cash flows | 5,117,000 |
Impact of present value discount | (93,000) |
Impact of present value discount | (1,019,000) |
Finance Lease, Liability, Total | 4,098,000 |
Accrued Interest Payable and Other Liabilities [Member] |  |
Operating Lease, Liability, Total | $ 906,000 |

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