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Note 8 - Borrowings (Tables) | 3 Months Ended
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Mar. 31, 2018
Notes Tables |
Schedule of Debt [Table Text Block] |
|  | March 31, 2018 |  |  | December 31, 2017 |
(Amounts in thousands) |  | Balance |  |  | Weighted Average Rate |  |  | Balance |  |  | Weighted Average Rate |
Short-term borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retail repurchase agreements |  | $ | 4,115 |  |  |  | 0.09 | % |  | $ | 5,086 |  |  |  | 0.07 | %
Long-term borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Wholesale repurchase agreements |  |  | 25,000 |  |  |  | 3.18 | % |  |  | 25,000 |  |  |  | 3.18 | %
FHLB advances |  |  | 50,000 |  |  |  | 4.00 | % |  |  | 50,000 |  |  |  | 4.00 | %
Total borrowings |  | $ | 79,115 |  |  |  |  |  |  | $ | 80,086 |  |  |  |  |
Schedule of Maturities of Long-term Debt [Table Text Block] |
|  | Wholesale Repurchase Agreements |  |  | FHLB Borrowings |  |  | Total |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |
2018 |  | $ | - |  |  | $ | - |  |  | $ | - |
2019 |  |  | 25,000 |  |  |  | - |  |  |  | 25,000 |
2020 |  |  | - |  |  |  | - |  |  |  | - |
2021 |  |  | - |  |  |  | 50,000 |  |  |  | 50,000 |
2022 |  |  | - |  |  |  | - |  |  |  | - |
2023 and thereafter |  |  | - |  |  |  | - |  |  |  | - |
Total |  | $ | 25,000 |  |  | $ | 50,000 |  |  | $ | 75,000 |
Weighted average maturity (in years) |  |  | 0.91 |  |  |  | 2.77 |  |  |  | 2.15 |
Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets [Table Text Block] |
|  | U.S. Treasury Securities |  |  | U.S. Agency Securities |  |  | Municipal Securities |  |  | Mortgage-backed Agency Securities |  |  | Total |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Overnight and continuous |  | $ | - |  |  | $ | - |  |  | $ | 2,378 |  |  | $ | 1,660 |  |  | $ | 4,038 |
Up to 30 days |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
30 - 90 days |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 77 |  |  |  | 77 |
Greater than 90 days |  |  | 9,000 |  |  |  | 4,680 |  |  |  | - |  |  |  | 11,320 |  |  |  | 25,000 |
|  | $ | 9,000 |  |  | $ | 4,680 |  |  | $ | 2,378 |  |  | $ | 13,057 |  |  | $ | 29,115 |

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