Note 4 - Securities (Tables)
|
6 Months Ended |
Jun. 30, 2023 |
|---|
| Notes Tables |
|
| Unrealized Gain (Loss) on Investments [Table Text Block] |
| |
|
|
|
|
|
Gross |
|
|
Gross |
|
|
|
|
|
| |
|
Amortized |
|
|
Unrealized |
|
|
Unrealized |
|
|
Fair |
|
| |
|
Cost |
|
|
Gain |
|
|
Loss |
|
|
Value |
|
| June 30, 2023 |
|
(In Thousands) |
|
| Debt Securities Available-for-Sale |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
414,470 |
|
|
$ |
47 |
|
|
$ |
(63 |
) |
|
$ |
414,454 |
|
| Government Agency Securities |
|
|
4 |
|
|
|
- |
|
|
|
- |
|
|
|
4 |
|
| Mortgage-backed securities |
|
|
261,450 |
|
|
|
2 |
|
|
|
(31,510 |
) |
|
|
229,942 |
|
| State and municipal securities |
|
|
13,409 |
|
|
|
1 |
|
|
|
(1,447 |
) |
|
|
11,963 |
|
| Corporate debt |
|
|
385,673 |
|
|
|
- |
|
|
|
(51,115 |
) |
|
|
334,558 |
|
| Total |
|
$ |
1,075,006 |
|
|
$ |
50 |
|
|
$ |
(84,135 |
) |
|
$ |
990,921 |
|
| Debt Securities Held-to-Maturity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
557,084 |
|
|
$ |
- |
|
|
$ |
(34,258 |
) |
|
$ |
522,826 |
|
| Mortgage-backed securities |
|
|
492,170 |
|
|
|
1 |
|
|
|
(58,302 |
) |
|
|
433,869 |
|
| State and municipal securities |
|
|
8,052 |
|
|
|
- |
|
|
|
(904 |
) |
|
|
7,148 |
|
| Total |
|
$ |
1,057,306 |
|
|
$ |
1 |
|
|
$ |
(93,464 |
) |
|
$ |
963,843 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 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] |
| |
|
June 30, 2023 |
|
|
December 31, 2022 |
|
| |
|
Amortized Cost |
|
|
Fair Value |
|
|
Amortized Cost |
|
|
Fair Value |
|
| |
|
(In Thousands) |
|
| Debt securities available-for-sale |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Due within one year |
|
$ |
449,651 |
|
|
$ |
448,911 |
|
|
$ |
24,712 |
|
|
$ |
24,432 |
|
| Due from one to five years |
|
|
31,741 |
|
|
|
29,817 |
|
|
|
58,554 |
|
|
|
57,092 |
|
| Due from five to ten years |
|
|
329,164 |
|
|
|
280,122 |
|
|
|
338,630 |
|
|
|
311,100 |
|
| Due after ten years |
|
|
3,000 |
|
|
|
2,129 |
|
|
|
3,000 |
|
|
|
2,488 |
|
| Mortgage-backed securities |
|
|
261,450 |
|
|
|
229,942 |
|
|
|
282,480 |
|
|
|
249,703 |
|
| |
|
$ |
1,075,006 |
|
|
$ |
990,921 |
|
|
$ |
707,376 |
|
|
$ |
644,815 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt securities held-to-maturity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Due within one year |
|
$ |
122,152 |
|
|
$ |
120,402 |
|
|
$ |
250 |
|
|
$ |
250 |
|
| Due from one to five years |
|
|
314,773 |
|
|
|
297,631 |
|
|
|
386,465 |
|
|
|
366,095 |
|
| Due from five to ten years |
|
|
128,211 |
|
|
|
111,941 |
|
|
|
128,477 |
|
|
|
111,632 |
|
| Mortgage-backed securities |
|
|
492,170 |
|
|
|
433,869 |
|
|
|
518,929 |
|
|
|
457,976 |
|
| |
|
$ |
1,057,306 |
|
|
$ |
963,843 |
|
|
$ |
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) |
|
| June 30, 2023 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Securities available-for-sale |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
(63 |
) |
|
$ |
214,652 |
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(63 |
) |
|
$ |
214,652 |
|
| Government Agency Securities |
|
|
- |
|
|
|
4 |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
4 |
|
| Mortgage-backed securities |
|
|
(19 |
) |
|
|
1,097 |
|
|
|
(31,490 |
) |
|
|
228,603 |
|
|
|
(31,510 |
) |
|
|
229,700 |
|
| State and municipal securities |
|
|
(24 |
) |
|
|
2,176 |
|
|
|
(1,423 |
) |
|
|
9,342 |
|
|
|
(1,447 |
) |
|
|
11,518 |
|
| Corporate debt |
|
|
(6,118 |
) |
|
|
69,657 |
|
|
|
(44,996 |
) |
|
|
258,041 |
|
|
|
(51,115 |
) |
|
|
327,698 |
|
| Total |
|
$ |
(6,225 |
) |
|
$ |
287,586 |
|
|
$ |
(77,910 |
) |
|
$ |
495,986 |
|
|
$ |
(84,135 |
) |
|
$ |
783,572 |
|
| Debt Securities held-to-maturity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Securities |
|
$ |
(6 |
) |
|
$ |
49,020 |
|
|
$ |
(34,252 |
) |
|
$ |
473,806 |
|
|
$ |
(34,258 |
) |
|
$ |
522,826 |
|
| Mortgage-backed securities |
|
|
(621 |
) |
|
|
10,241 |
|
|
|
(57,681 |
) |
|
|
419,852 |
|
|
|
(58,302 |
) |
|
|
430,093 |
|
| State and municipal securities |
|
|
- |
|
|
|
- |
|
|
|
(904 |
) |
|
|
6,898 |
|
|
|
(904 |
) |
|
|
6,898 |
|
| Total |
|
$ |
(627 |
) |
|
$ |
59,261 |
|
|
$ |
(92,836 |
) |
|
$ |
900,556 |
|
|
$ |
(93,464 |
) |
|
$ |
959,817 |
|
| 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] |
| |
|
Three Months Ended June 30, |
|
|
Six Months Ended June 30, |
|
| |
|
2023 |
|
|
2022 |
|
|
2023 |
|
|
2022 |
|
| |
|
(In Thousands) |
|
| Sale proceeds |
|
$ |
- |
|
|
$ |
33,425 |
|
|
$ |
- |
|
|
$ |
75,036 |
|
| Gross realized gains |
|
$ |
- |
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
- |
|
| Gross realized losses |
|
|
- |
|
|
|
(2,833 |
) |
|
|
- |
|
|
|
(6,168 |
) |
| Net realized gain (loss) |
|
$ |
- |
|
|
$ |
(2,833 |
) |
|
$ |
- |
|
|
$ |
(6,168 |
) |
|