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Note 6 - Investments in Affordable Housing and Alternative Energy Partnerships (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Investments in Affordable Housing and Alternative Energy Partnerships [Table Text Block] |
|  | As of December 31, |
(In thousands) |  | 2018 |  |  | 2017 |
Investments in affordable housing partnerships, net |  | $ | 259,046 |  |  | $ | 260,112 |
Other borrowings for affordable housing limited partnerships |  | $ | 17,298 |  |  | $ | 17,481 |
Investments in affordable housing and alternative energy partnerships, unfunded commitments |  | $ | 113,046 |  |  | $ | 124,657 |
Investments in alternative energy tax credit partnerships, net |  | $ | 23,688 |  |  | $ | 12,759 |
Unfunded Commitments Future Estimated Payments [Table Text Block] |
|  | Amount |
Year Ending December 31, |  | (In thousands) |
2019 |  | $ | 55,962 |
2020 |  |  | 29,267 |
2021 |  |  | 11,669 |
2022 |  |  | 11,182 |
2023 |  |  | 1,473 |
Thereafter |  |  | 3,493 |
Total unfunded commitments |  | $ | 113,046 |
Usage of Affordable Housing and Other Tax Credits Including Energy Tax Credit [Table Text Block] |
|  | As of December 31, |
(In thousands) |  | 2018 |  |  | 2017 |  |  | 2016 |
Affordable housing and other tax credits recognized |  | $ | 18,860 |  |  | $ | 17,727 |  |  | $ | 13,422 |
Alternative energy tax credit usage |  | $ | 15,013 |  |  | $ | 3,301 |  |  | $ | 24,472 |

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