Note 4 - Securities (Tables)
|
9 Months Ended |
Sep. 30, 2023 |
|---|
| Notes Tables |
|
| Unrealized Gain (Loss) on Investments [Table Text Block] |
| |
|
|
|
|
|
Gross |
|
|
Gross |
|
|
|
|
|
| |
|
Amortized |
|
|
Unrealized |
|
|
Unrealized |
|
|
Fair |
|
| |
|
Cost |
|
|
Gain |
|
|
Loss |
|
|
Value |
|
| September 30, 2023 |
|
(In Thousands) |
|
| Debt Securities Available-for-Sale |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
280,807 |
|
|
$ |
7 |
|
|
$ |
(96 |
) |
|
$ |
280,718 |
|
| Mortgage-backed securities |
|
|
251,001 |
|
|
|
- |
|
|
|
(35,760 |
) |
|
|
215,241 |
|
| State and municipal securities |
|
|
12,762 |
|
|
|
1 |
|
|
|
(1,570 |
) |
|
|
11,193 |
|
| Corporate debt |
|
|
375,673 |
|
|
|
- |
|
|
|
(48,023 |
) |
|
|
327,650 |
|
| Total |
|
$ |
920,243 |
|
|
$ |
8 |
|
|
$ |
(85,449 |
) |
|
$ |
834,802 |
|
| Debt Securities Held-to-Maturity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
558,196 |
|
|
$ |
- |
|
|
$ |
(35,014 |
) |
|
$ |
523,182 |
|
| Mortgage-backed securities |
|
|
477,646 |
|
|
|
- |
|
|
|
(74,928 |
) |
|
|
402,718 |
|
| State and municipal securities |
|
|
8,057 |
|
|
|
- |
|
|
|
(951 |
) |
|
|
7,106 |
|
| Total |
|
$ |
1,043,899 |
|
|
$ |
- |
|
|
$ |
(110,893 |
) |
|
$ |
933,006 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| December 31, 2022 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Securities Available-for-Sale |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
3,002 |
|
|
$ |
- |
|
|
$ |
(33 |
) |
|
$ |
2,969 |
|
| Government Agency Securities |
|
|
9 |
|
|
|
- |
|
|
|
- |
|
|
|
9 |
|
| Mortgage-backed securities |
|
|
282,480 |
|
|
|
5 |
|
|
|
(32,782 |
) |
|
|
249,703 |
|
| State and municipal securities |
|
|
15,205 |
|
|
|
1 |
|
|
|
(1,597 |
) |
|
|
13,609 |
|
| Corporate debt |
|
|
406,680 |
|
|
|
- |
|
|
|
(28,155 |
) |
|
|
378,525 |
|
| Total |
|
$ |
707,376 |
|
|
$ |
6 |
|
|
$ |
(62,567 |
) |
|
$ |
644,815 |
|
| Debt Securities Held-to-Maturity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
507,151 |
|
|
$ |
- |
|
|
$ |
(36,197 |
) |
|
$ |
470,954 |
|
| Mortgage-backed securities |
|
|
518,929 |
|
|
|
7 |
|
|
|
(60,960 |
) |
|
|
457,976 |
|
| State and municipal securities |
|
|
8,041 |
|
|
|
- |
|
|
|
(1,018 |
) |
|
|
7,023 |
|
| Total |
|
$ |
1,034,121 |
|
|
$ |
7 |
|
|
$ |
(98,175 |
) |
|
$ |
935,953 |
|
|
| Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
| |
|
September 30, 2023 |
|
|
December 31, 2022 |
|
| |
|
Amortized Cost |
|
|
Fair Value |
|
|
Amortized Cost |
|
|
Fair Value |
|
| |
|
(In Thousands) |
|
| Debt securities available-for-sale |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Due within one year |
|
$ |
292,131 |
|
|
$ |
291,740 |
|
|
$ |
24,712 |
|
|
$ |
24,432 |
|
| Due from one to five years |
|
|
66,668 |
|
|
|
63,623 |
|
|
|
58,554 |
|
|
|
57,092 |
|
| Due from five to ten years |
|
|
307,443 |
|
|
|
261,919 |
|
|
|
338,630 |
|
|
|
311,100 |
|
| Due after ten years |
|
|
3,000 |
|
|
|
2,279 |
|
|
|
3,000 |
|
|
|
2,488 |
|
| Mortgage-backed securities |
|
|
251,001 |
|
|
|
215,241 |
|
|
|
282,480 |
|
|
|
249,703 |
|
| |
|
$ |
920,243 |
|
|
$ |
834,802 |
|
|
$ |
707,376 |
|
|
$ |
644,815 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt securities held-to-maturity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Due within one year |
|
$ |
309,311 |
|
|
$ |
304,931 |
|
|
$ |
250 |
|
|
$ |
250 |
|
| Due from one to five years |
|
|
128,708 |
|
|
|
115,557 |
|
|
|
386,465 |
|
|
|
366,095 |
|
| Due from five to ten years |
|
|
128,234 |
|
|
|
109,800 |
|
|
|
128,477 |
|
|
|
111,632 |
|
| Mortgage-backed securities |
|
|
477,646 |
|
|
|
402,718 |
|
|
|
518,929 |
|
|
|
457,976 |
|
| |
|
$ |
1,043,899 |
|
|
$ |
933,006 |
|
|
$ |
1,034,121 |
|
|
$ |
935,953 |
|
|
| 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) |
|
| September 30, 2023 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Securities available-for-sale |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
(96 |
) |
|
$ |
231,360 |
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(96 |
) |
|
$ |
231,360 |
|
| Mortgage-backed securities |
|
|
(33 |
) |
|
|
1,137 |
|
|
|
(35,727 |
) |
|
|
214,104 |
|
|
|
(35,760 |
) |
|
|
215,241 |
|
| State and municipal securities |
|
|
- |
|
|
|
- |
|
|
|
(1,570 |
) |
|
|
10,462 |
|
|
|
(1,570 |
) |
|
|
10,462 |
|
| Corporate debt |
|
|
(772 |
) |
|
|
13,660 |
|
|
|
(47,251 |
) |
|
|
305,631 |
|
|
|
(48,023 |
) |
|
|
319,291 |
|
| Total |
|
$ |
(901 |
) |
|
$ |
246,157 |
|
|
$ |
(84,548 |
) |
|
$ |
530,197 |
|
|
$ |
(85,449 |
) |
|
$ |
776,354 |
|
| Debt Securities held-to-maturity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
(6 |
) |
|
$ |
49,669 |
|
|
$ |
(35,008 |
) |
|
$ |
473,513 |
|
|
$ |
(35,014 |
) |
|
$ |
523,182 |
|
| Mortgage-backed securities |
|
|
(38 |
) |
|
|
846 |
|
|
|
(74,890 |
) |
|
|
398,551 |
|
|
|
(74,928 |
) |
|
|
399,396 |
|
| State and municipal securities |
|
|
- |
|
|
|
- |
|
|
|
(951 |
) |
|
|
6,856 |
|
|
|
(951 |
) |
|
|
6,856 |
|
| Total |
|
$ |
(44 |
) |
|
$ |
50,515 |
|
|
$ |
(110,849 |
) |
|
$ |
878,920 |
|
|
$ |
(110,893 |
) |
|
$ |
929,434 |
|
| December 31, 2022 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Securities available-for-sale |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
(33 |
) |
|
$ |
2,969 |
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(33 |
) |
|
$ |
2,969 |
|
| Government Agency Securities |
|
|
- |
|
|
|
9 |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
9 |
|
| Mortgage-backed securities |
|
|
(3,473 |
) |
|
|
60,234 |
|
|
|
(29,309 |
) |
|
|
189,109 |
|
|
|
(32,782 |
) |
|
|
249,343 |
|
| State and municipal securities |
|
|
(186 |
) |
|
|
5,283 |
|
|
|
(1,411 |
) |
|
|
7,880 |
|
|
|
(1,597 |
) |
|
|
13,163 |
|
| Corporate debt |
|
|
(18,566 |
) |
|
|
304,254 |
|
|
|
(9,589 |
) |
|
|
63,411 |
|
|
|
(28,155 |
) |
|
|
367,666 |
|
| Total |
|
$ |
(22,258 |
) |
|
$ |
372,749 |
|
|
$ |
(40,309 |
) |
|
$ |
260,400 |
|
|
$ |
(62,567 |
) |
|
$ |
633,149 |
|
| Debt Securities held-to-maturity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
(12,662 |
) |
|
$ |
295,383 |
|
|
$ |
(23,537 |
) |
|
$ |
175,570 |
|
|
$ |
(36,197 |
) |
|
$ |
470,953 |
|
| Mortgage-backed securities |
|
|
(31,367 |
) |
|
|
278,746 |
|
|
|
(29,592 |
) |
|
|
174,842 |
|
|
|
(60,960 |
) |
|
|
453,588 |
|
| State and municipal securities |
|
|
(544 |
) |
|
|
4,443 |
|
|
|
(474 |
) |
|
|
2,330 |
|
|
|
(1,018 |
) |
|
|
6,773 |
|
| Total |
|
$ |
(44,573 |
) |
|
$ |
578,572 |
|
|
$ |
(53,603 |
) |
|
$ |
352,742 |
|
|
$ |
(98,175 |
) |
|
$ |
931,314 |
|
|
| Debt Securities, Available-for-Sale [Table Text Block] |
| |
|
Nine Months Ended September 30, |
|
| |
|
2023 |
|
|
2022 |
|
| |
|
(In Thousands) |
|
| Sale proceeds |
|
$ |
- |
|
|
$ |
75,036 |
|
| Gross realized gains |
|
$ |
- |
|
|
$ |
- |
|
| Gross realized losses |
|
|
- |
|
|
|
(6,168 |
) |
| Net realized gain (loss) |
|
$ |
- |
|
|
$ |
(6,168 |
) |
|