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Note 4 - Securities (Tables) | 9 Months Ended
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Sep. 30, 2019
Notes Tables |
Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] |
|  |  |  |  |  |  |  |  |  | Gross |  |  | Gross |
|  | Amortized |  |  |  |  |  |  | Unrealized |  |  | Unrealized |
|  | Cost |  |  | Fair Value |  |  | Gains |  |  | Losses |
|  | (In thousands) |
Securities held-to-maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipals |  | $ | 52,101 |  |  | $ | 55,498 |  |  | $ | 3,397 |  |  | $ | - |
Total other securities |  |  | 52,101 |  |  |  | 55,498 |  |  |  | 3,397 |  |  |  | - |
FNMA |  |  | 7,939 |  |  |  | 8,372 |  |  |  | 433 |  |  |  | - |
Total mortgage-backed securities |  |  | 7,939 |  |  |  | 8,372 |  |  |  | 433 |  |  |  | - |
Total |  | $ | 60,040 |  |  | $ | 63,870 |  |  | $ | 3,830 |  |  | $ | - |
|  |  |  |  |  |  |  |  |  | Gross |  |  | Gross |
|  | Amortized |  |  |  |  |  |  | Unrealized |  |  | Unrealized |
|  | Cost |  |  | Fair Value |  |  | Gains |  |  | Losses |
|  | (In thousands) |
Securities held-to-maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipals |  | $ | 24,065 |  |  | $ | 22,508 |  |  | $ | - |  |  | $ | 1,557 |
Total other securities |  |  | 24,065 |  |  |  | 22,508 |  |  |  | - |  |  |  | 1,557 |
FNMA |  |  | 7,953 |  |  |  | 7,366 |  |  |  | - |  |  |  | 587 |
Total mortgage-backed securities |  |  | 7,953 |  |  |  | 7,366 |  |  |  | - |  |  |  | 587 |
Total |  | $ | 32,018 |  |  | $ | 29,874 |  |  | $ | - |  |  | $ | 2,144 |
|  |  |  |  |  |  |  |  |  | Gross |  |  | Gross |
|  | Amortized |  |  |  |  |  |  | Unrealized |  |  | Unrealized |
|  | Cost |  |  | Fair Value |  |  | Gains |  |  | Losses |
|  | (In thousands) |
Corporate |  | $ | 130,000 |  |  | $ | 120,543 |  |  | $ | - |  |  | $ | 9,457 |
Municipals |  |  | 12,849 |  |  |  | 13,017 |  |  |  | 168 |  |  |  | - |
Mutual funds |  |  | 12,206 |  |  |  | 12,206 |  |  |  | - |  |  |  | - |
Collateralized loan obligations |  |  | 100,336 |  |  |  | 99,381 |  |  |  | 5 |  |  |  | 960 |
Other |  |  | 1,318 |  |  |  | 1,318 |  |  |  | - |  |  |  | - |
Total other securities |  |  | 256,709 |  |  |  | 246,465 |  |  |  | 173 |  |  |  | 10,417 |
REMIC and CMO |  |  | 390,044 |  |  |  | 392,525 |  |  |  | 3,604 |  |  |  | 1,123 |
GNMA |  |  | 706 |  |  |  | 764 |  |  |  | 58 |  |  |  | - |
FNMA |  |  | 106,773 |  |  |  | 107,383 |  |  |  | 998 |  |  |  | 388 |
FHLMC |  |  | 77,455 |  |  |  | 78,338 |  |  |  | 998 |  |  |  | 115 |
Total mortgage-backed securities |  |  | 574,978 |  |  |  | 579,010 |  |  |  | 5,658 |  |  |  | 1,626 |
Total securities available for sale |  | $ | 831,687 |  |  | $ | 825,475 |  |  | $ | 5,831 |  |  | $ | 12,043 |
|  |  |  |  |  |  |  |  |  | Gross |  |  | Gross |
|  | Amortized |  |  |  |  |  |  | Unrealized |  |  | Unrealized |
|  | Cost |  |  | Fair Value |  |  | Gains |  |  | Losses |
|  | (In thousands) |
Corporate |  | $ | 130,000 |  |  | $ | 118,535 |  |  | $ | - |  |  | $ | 11,465 |
Municipals |  |  | 46,231 |  |  |  | 46,574 |  |  |  | 343 |  |  |  | - |
Mutual funds |  |  | 11,586 |  |  |  | 11,586 |  |  |  | - |  |  |  | - |
Collateralized loan obligations |  |  | 88,396 |  |  |  | 86,751 |  |  |  | - |  |  |  | 1,645 |
Other |  |  | 1,256 |  |  |  | 1,256 |  |  |  | - |  |  |  | - |
Total other securities |  |  | 277,469 |  |  |  | 264,702 |  |  |  | 343 |  |  |  | 13,110 |
REMIC and CMO |  |  | 382,632 |  |  |  | 376,340 |  |  |  | 885 |  |  |  | 7,177 |
GNMA |  |  | 785 |  |  |  | 826 |  |  |  | 41 |  |  |  | - |
FNMA |  |  | 94,069 |  |  |  | 91,693 |  |  |  | 72 |  |  |  | 2,448 |
FHLMC |  |  | 90,377 |  |  |  | 89,094 |  |  |  | 113 |  |  |  | 1,396 |
Total mortgage-backed securities |  |  | 567,863 |  |  |  | 557,953 |  |  |  | 1,111 |  |  |  | 11,021 |
Total securities available for sale |  | $ | 845,332 |  |  | $ | 822,655 |  |  | $ | 1,454 |  |  | $ | 24,131 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Amortized |  |  |  |  |
Securities held-to-maturity: |  | Cost |  |  | Fair Value |
|  | (In thousands) |
Due in one year or less |  | $ | 1,180 |  |  | $ | 1,180 |
Due after ten years |  |  | 50,921 |  |  |  | 54,318 |
Total other securities |  |  | 52,101 |  |  |  | 55,498 |
Mortgage-backed securities |  |  | 7,939 |  |  |  | 8,372 |
Total |  | $ | 60,040 |  |  | $ | 63,870 |
|  | Amortized |  |  |  |  |
Securities available for sale: |  | Cost |  |  | Fair Value |
|  | (In thousands) |
Due after one year through five years |  | $ | 10,000 |  |  | $ | 9,762 |
Due after five years through ten years |  |  | 137,913 |  |  |  | 128,645 |
Due after ten years |  |  | 96,590 |  |  |  | 95,852 |
Total other securities |  |  | 244,503 |  |  |  | 234,259 |
Mutual funds |  |  | 12,206 |  |  |  | 12,206 |
Mortgage-backed securities |  |  | 574,978 |  |  |  | 579,010 |
Total |  | $ | 831,687 |  |  | $ | 825,475 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] |
|  | At September 30, 2019 |
|  | Total |  |  | Less than 12 months |  |  | 12 months or more |
|  |  |  |  |  |  |  |  |  | Unrealized |  |  |  |  |  |  | Unrealized |  |  |  |  |  |  | Unrealized |
|  | Count |  |  | Fair Value |  |  | Losses |  |  | Fair Value |  |  | Losses |  |  | Fair Value |  |  | Losses |
|  |  |  |  |  | (Dollars in thousands) |
Available for sale securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate |  |  | 16 |  |  | $ | 120,543 |  |  | $ | 9,457 |  |  | $ | 9,663 |  |  | $ | 338 |  |  | $ | 110,880 |  |  | $ | 9,119 |
CLO |  |  | 12 |  |  |  | 91,916 |  |  |  | 960 |  |  |  | 63,821 |  |  |  | 485 |  |  |  | 28,095 |  |  |  | 475 |
Total other securities |  |  | 28 |  |  |  | 212,459 |  |  |  | 10,417 |  |  |  | 73,484 |  |  |  | 823 |  |  |  | 138,975 |  |  |  | 9,594 |
REMIC and CMO |  |  | 25 |  |  |  | 157,584 |  |  |  | 1,123 |  |  |  | 138,250 |  |  |  | 887 |  |  |  | 19,334 |  |  |  | 236 |
FNMA |  |  | 7 |  |  |  | 69,075 |  |  |  | 388 |  |  |  | 14,888 |  |  |  | 30 |  |  |  | 54,187 |  |  |  | 358 |
FHLMC |  |  | 1 |  |  |  | 34,816 |  |  |  | 115 |  |  |  | - |  |  |  | - |  |  |  | 34,816 |  |  |  | 115 |
Total mortgage-backed securities |  |  | 33 |  |  |  | 261,475 |  |  |  | 1,626 |  |  |  | 153,138 |  |  |  | 917 |  |  |  | 108,337 |  |  |  | 709 |
Total |  |  | 61 |  |  | $ | 473,934 |  |  | $ | 12,043 |  |  | $ | 226,622 |  |  | $ | 1,740 |  |  | $ | 247,312 |  |  | $ | 10,303 |
|  | At December 31, 2018 |
|  | Total |  |  | Less than 12 months |  |  | 12 months or more |
|  |  |  |  |  |  |  |  |  | Unrealized |  |  |  |  |  |  | Unrealized |  |  |  |  |  |  | Unrealized |
|  | Count |  |  | Fair Value |  |  | Losses |  |  | Fair Value |  |  | Losses |  |  | Fair Value |  |  | Losses |
|  | (Dollars in thousands) |
Held-to-maturity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipals |  |  | 1 |  |  | $ | 19,940 |  |  | $ | 1,557 |  |  | $ | - |  |  | $ | - |  |  | $ | 19,940 |  |  | $ | 1,557 |
Total other securities |  |  | 1 |  |  |  | 19,940 |  |  |  | 1,557 |  |  |  | - |  |  |  | - |  |  |  | 19,940 |  |  |  | 1,557 |
FNMA |  |  | 1 |  |  |  | 7,366 |  |  |  | 587 |  |  |  | - |  |  |  | - |  |  |  | 7,366 |  |  |  | 587 |
Total mortgage-backed securities |  |  | 1 |  |  |  | 7,366 |  |  |  | 587 |  |  |  | - |  |  |  | - |  |  |  | 7,366 |  |  |  | 587 |
Total securities held-to-maturity |  |  | 2 |  |  | $ | 27,306 |  |  | $ | 2,144 |  |  | $ | - |  |  | $ | - |  |  | $ | 27,306 |  |  | $ | 2,144 |
Available for sale securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate |  |  | 16 |  |  | $ | 118,535 |  |  | $ | 11,465 |  |  | $ | 19,113 |  |  | $ | 888 |  |  | $ | 99,422 |  |  | $ | 10,577 |
Municipals |  |  | 3 |  |  |  | 4,220 |  |  |  | - |  |  |  | 4,220 |  |  |  | - |  |  |  | - |  |  |  | - |
CLO |  |  | 11 |  |  |  | 86,752 |  |  |  | 1,645 |  |  |  | 86,752 |  |  |  | 1,645 |  |  |  | - |  |  |  | - |
Total other securities |  |  | 30 |  |  |  | 209,507 |  |  |  | 13,110 |  |  |  | 110,085 |  |  |  | 2,533 |  |  |  | 99,422 |  |  |  | 10,577 |
REMIC and CMO |  |  | 39 |  |  |  | 243,756 |  |  |  | 7,177 |  |  |  | 17,308 |  |  |  | 200 |  |  |  | 226,448 |  |  |  | 6,977 |
GNMA |  |  | 1 |  |  |  | 51 |  |  |  | - |  |  |  | 51 |  |  |  | - |  |  |  | - |  |  |  | - |
FNMA |  |  | 14 |  |  |  | 85,046 |  |  |  | 2,448 |  |  |  | 6,372 |  |  |  | 17 |  |  |  | 78,674 |  |  |  | 2,431 |
FHLMC |  |  | 3 |  |  |  | 51,288 |  |  |  | 1,396 |  |  |  | 10,116 |  |  |  | 95 |  |  |  | 41,172 |  |  |  | 1,301 |
Total mortgage-backed securities |  |  | 57 |  |  |  | 380,141 |  |  |  | 11,021 |  |  |  | 33,847 |  |  |  | 312 |  |  |  | 346,294 |  |  |  | 10,709 |
Total securities available for sale |  |  | 87 |  |  | $ | 589,648 |  |  | $ | 24,131 |  |  | $ | 143,932 |  |  | $ | 2,845 |  |  | $ | 445,716 |  |  | $ | 21,286 |
Schedule of Realized Gain (Loss) [Table Text Block] |
|  | For the three months ended |  |  | For the nine months ended |
|  | September 30, |  |  | September 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
|  | (In thousands) |
Gross gains from the sale of securities |  | $ | - |  |  | $ | - |  |  | $ | 423 |  |  | $ | - |
Gross losses from the sale of securities |  |  | - |  |  |  | - |  |  |  | (438 | ) |  |  | - |
Net losses from the sale of securities |  | $ | - |  |  | $ | - |  |  | $ | (15 | ) |  | $ | - |

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