Note 4 - Securities (Tables)
|
6 Months Ended |
Jun. 30, 2024 |
Notes Tables |
|
Unrealized Gain (Loss) on Investments [Table Text Block] |
|
|
|
|
|
|
Gross
|
|
|
Gross
|
|
|
|
|
|
|
|
Amortized
|
|
|
Unrealized
|
|
|
Unrealized
|
|
|
Fair
|
|
|
|
Cost
|
|
|
Gain
|
|
|
Loss
|
|
|
Value
|
|
June 30, 2024
|
|
(In Thousands)
|
|
Debt Securities Available-for-Sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Securities
|
|
$ |
609,123 |
|
|
$ |
38 |
|
|
$ |
(340 |
) |
|
$ |
608,821 |
|
Mortgage-backed securities
|
|
|
268,557 |
|
|
|
1 |
|
|
|
(27,195 |
) |
|
|
241,363 |
|
State and municipal securities
|
|
|
11,140 |
|
|
|
1 |
|
|
|
(1,162 |
) |
|
|
9,979 |
|
Corporate debt
|
|
|
350,692 |
|
|
|
- |
|
|
|
(36,469 |
) |
|
|
314,223 |
|
Total
|
|
$ |
1,239,512 |
|
|
$ |
40 |
|
|
$ |
(65,166 |
) |
|
$ |
1,174,386 |
|
Debt Securities Held-to-Maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Securities
|
|
$ |
274,270 |
|
|
$ |
- |
|
|
$ |
(23,932 |
) |
|
$ |
250,338 |
|
Mortgage-backed securities
|
|
|
484,911 |
|
|
|
18 |
|
|
|
(58,379 |
) |
|
|
426,550 |
|
State and municipal securities
|
|
|
8,074 |
|
|
|
- |
|
|
|
(728 |
) |
|
|
7,346 |
|
Total
|
|
$ |
767,255 |
|
|
$ |
18 |
|
|
$ |
(83,039 |
) |
|
$ |
684,234 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31, 2023
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt Securities Available-for-Sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Securities
|
|
$ |
340,556 |
|
|
$ |
251 |
|
|
$ |
- |
|
|
$ |
340,807 |
|
Mortgage-backed securities
|
|
|
241,458 |
|
|
|
6 |
|
|
|
(25,979 |
) |
|
|
215,485 |
|
State and municipal securities
|
|
|
11,400 |
|
|
|
1 |
|
|
|
(1,178 |
) |
|
|
10,223 |
|
Corporate debt
|
|
|
375,676 |
|
|
|
- |
|
|
|
(42,009 |
) |
|
|
333,667 |
|
Total
|
|
$ |
969,090 |
|
|
$ |
258 |
|
|
$ |
(69,166 |
) |
|
$ |
900,183 |
|
Debt Securities Held-to-Maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Securities
|
|
$ |
508,985 |
|
|
$ |
- |
|
|
$ |
(24,718 |
) |
|
$ |
484,267 |
|
Mortgage-backed securities
|
|
|
465,615 |
|
|
|
3 |
|
|
|
(50,025 |
) |
|
|
415,593 |
|
State and municipal securities
|
|
|
8,063 |
|
|
|
- |
|
|
|
(732 |
) |
|
|
7,331 |
|
Total
|
|
$ |
982,664 |
|
|
$ |
3 |
|
|
$ |
(75,475 |
) |
|
$ |
907,191 |
|
|
Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
|
|
June 30, 2024
|
|
|
December 31, 2023
|
|
|
|
Amortized Cost
|
|
|
Fair Value
|
|
|
Amortized Cost
|
|
|
Fair Value
|
|
|
|
(In Thousands)
|
|
Debt securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Due within one year
|
|
$ |
566,771 |
|
|
$ |
566,467 |
|
|
$ |
350,400 |
|
|
$ |
350,396 |
|
Due from one to five years
|
|
|
116,025 |
|
|
|
111,359 |
|
|
|
70,016 |
|
|
|
67,334 |
|
Due from five to ten years
|
|
|
285,159 |
|
|
|
252,915 |
|
|
|
304,216 |
|
|
|
264,893 |
|
Due after ten years
|
|
|
3,000 |
|
|
|
2,282 |
|
|
|
3,000 |
|
|
|
2,076 |
|
Mortgage-backed securities
|
|
|
268,557 |
|
|
|
241,363 |
|
|
|
241,458 |
|
|
|
215,485 |
|
|
|
$ |
1,239,512 |
|
|
$ |
1,174,386 |
|
|
$ |
969,090 |
|
|
$ |
900,183 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Due within one year
|
|
$ |
25,225 |
|
|
$ |
25,176 |
|
|
$ |
260,047 |
|
|
$ |
257,835 |
|
Due from one to five years
|
|
|
253,830 |
|
|
|
229,634 |
|
|
|
203,481 |
|
|
|
185,741 |
|
Due from five to ten years
|
|
|
3,289 |
|
|
|
2,874 |
|
|
|
53,521 |
|
|
|
48,022 |
|
Mortgage-backed securities
|
|
|
484,911 |
|
|
|
426,550 |
|
|
|
465,615 |
|
|
|
415,593 |
|
|
|
$ |
767,255 |
|
|
$ |
684,234 |
|
|
$ |
982,664 |
|
|
$ |
907,191 |
|
|
Gain (Loss) on Securities [Table Text Block] |
|
|
Less Than Twelve Months
|
|
|
Twelve Months or More
|
|
|
Total
|
|
|
|
Gross
|
|
|
|
|
|
|
Gross
|
|
|
|
|
|
|
Gross
|
|
|
|
|
|
|
|
Unrealized
|
|
|
|
|
|
|
Unrealized
|
|
|
|
|
|
|
Unrealized
|
|
|
|
|
|
|
|
Losses
|
|
|
Fair Value
|
|
|
Losses
|
|
|
Fair Value
|
|
|
Losses
|
|
|
Fair Value
|
|
|
|
(In Thousands)
|
|
June 30, 2024
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt Securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Securities
|
|
$ |
(340 |
) |
|
$ |
164,413 |
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(340 |
) |
|
$ |
164,413 |
|
Mortgage-backed securities
|
|
|
(87 |
) |
|
|
46,401 |
|
|
|
(27,108 |
) |
|
|
194,850 |
|
|
|
(27,195 |
) |
|
|
241,251 |
|
State and municipal securities
|
|
|
- |
|
|
|
- |
|
|
|
(1,162 |
) |
|
|
9,533 |
|
|
|
(1,162 |
) |
|
|
9,533 |
|
Corporate debt
|
|
|
(2,634 |
) |
|
|
20,786 |
|
|
|
(33,836 |
) |
|
|
293,437 |
|
|
|
(36,469 |
) |
|
|
314,223 |
|
Total
|
|
$ |
(3,061 |
) |
|
$ |
231,600 |
|
|
$ |
(62,106 |
) |
|
$ |
497,820 |
|
|
$ |
(65,166 |
) |
|
$ |
729,420 |
|
Debt Securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Securities
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(23,932 |
) |
|
$ |
250,340 |
|
|
$ |
(23,932 |
) |
|
$ |
250,339 |
|
Mortgage-backed securities
|
|
|
(564 |
) |
|
|
41,186 |
|
|
|
(57,815 |
) |
|
|
378,928 |
|
|
|
(58,379 |
) |
|
|
420,114 |
|
State and municipal securities
|
|
|
- |
|
|
|
- |
|
|
|
(728 |
) |
|
|
7,096 |
|
|
|
(728 |
) |
|
|
7,096 |
|
Total
|
|
$ |
(564 |
) |
|
$ |
41,186 |
|
|
$ |
(82,475 |
) |
|
$ |
636,364 |
|
|
$ |
(83,039 |
) |
|
$ |
677,549 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31, 2023
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt Securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Securities
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
- |
|
Government Agency Securities
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
Mortgage-backed securities
|
|
|
(6 |
) |
|
|
704 |
|
|
|
(25,973 |
) |
|
|
214,393 |
|
|
|
(25,979 |
) |
|
|
215,097 |
|
State and municipal securities
|
|
|
- |
|
|
|
- |
|
|
|
(1,178 |
) |
|
|
9,777 |
|
|
|
(1,178 |
) |
|
|
9,777 |
|
Corporate debt
|
|
|
(794 |
) |
|
|
15,141 |
|
|
|
(41,214 |
) |
|
|
311,666 |
|
|
|
(42,009 |
) |
|
|
326,807 |
|
Total
|
|
$ |
(801 |
) |
|
$ |
15,845 |
|
|
$ |
(68,365 |
) |
|
$ |
535,836 |
|
|
$ |
(69,166 |
) |
|
$ |
551,681 |
|
Debt Securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury Securities
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(24,718 |
) |
|
$ |
484,267 |
|
|
$ |
(24,718 |
) |
|
$ |
484,267 |
|
Mortgage-backed securities
|
|
|
(1 |
) |
|
|
430 |
|
|
|
(50,024 |
) |
|
|
411,585 |
|
|
|
(50,025 |
) |
|
|
412,015 |
|
State and municipal securities
|
|
|
- |
|
|
|
- |
|
|
|
(732 |
) |
|
|
7,081 |
|
|
|
(732 |
) |
|
|
7,081 |
|
Total
|
|
$ |
(1 |
) |
|
$ |
430 |
|
|
$ |
(75,474 |
) |
|
$ |
902,933 |
|
|
$ |
(75,475 |
) |
|
$ |
903,363 |
|
|