Note 4 - Securities (Tables)
|
9 Months Ended |
Sep. 30, 2026 |
|---|
| Notes Tables |
|
| Unrealized Gain (Loss) on Investments [Table Text Block] |
| |
|
|
|
|
|
Gross
|
|
|
Gross
|
|
|
|
|
|
| |
|
Amortized
|
|
|
Unrealized
|
|
|
Unrealized
|
|
|
Fair
|
|
| |
|
Cost
|
|
|
Gain
|
|
|
Loss
|
|
|
Value
|
|
|
September 30, 2026
|
|
(In Thousands)
|
|
|
Debt securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
440,569 |
|
|
$ |
- |
|
|
$ |
(2,183 |
) |
|
$ |
438,386 |
|
|
Mortgage-backed securities
|
|
|
154,363 |
|
|
|
- |
|
|
|
(6,874 |
) |
|
|
147,489 |
|
|
State and municipal securities
|
|
|
9,855 |
|
|
|
1 |
|
|
|
(625 |
) |
|
|
9,231 |
|
|
Corporate debt
|
|
|
380,255 |
|
|
|
1,195 |
|
|
|
(8,053 |
) |
|
|
373,397 |
|
|
Total
|
|
$ |
985,042 |
|
|
$ |
1,196 |
|
|
$ |
(17,735 |
) |
|
$ |
968,503 |
|
|
Debt securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
224,785 |
|
|
$ |
- |
|
|
$ |
(9,348 |
) |
|
$ |
215,437 |
|
|
Mortgage-backed securities
|
|
|
363,792 |
|
|
|
- |
|
|
|
(51,792 |
) |
|
|
312,000 |
|
|
State and municipal securities
|
|
|
6,019 |
|
|
|
- |
|
|
|
(351 |
) |
|
|
5,668 |
|
|
Total
|
|
$ |
594,596 |
|
|
$ |
- |
|
|
$ |
(61,491 |
) |
|
$ |
533,105 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31, 2025
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
520,100 |
|
|
$ |
2,823 |
|
|
$ |
- |
|
|
$ |
522,923 |
|
|
Mortgage-backed securities
|
|
|
133,126 |
|
|
|
1,030 |
|
|
|
(852 |
) |
|
|
133,304 |
|
|
State and municipal securities
|
|
|
10,362 |
|
|
|
1 |
|
|
|
(554 |
) |
|
|
9,809 |
|
|
Corporate debt
|
|
|
409,725 |
|
|
|
2,274 |
|
|
|
(9,210 |
) |
|
|
402,789 |
|
|
Total
|
|
$ |
1,073,313 |
|
|
$ |
6,128 |
|
|
$ |
(10,616 |
) |
|
$ |
1,068,825 |
|
|
Debt securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
249,621 |
|
|
$ |
- |
|
|
$ |
(9,589 |
) |
|
$ |
240,032 |
|
|
Mortgage-backed securities
|
|
|
402,097 |
|
|
|
743 |
|
|
|
(34,395 |
) |
|
|
368,445 |
|
|
State and municipal securities
|
|
|
8,358 |
|
|
|
- |
|
|
|
(300 |
) |
|
|
8,058 |
|
|
Total
|
|
$ |
660,076 |
|
|
$ |
743 |
|
|
$ |
(44,284 |
) |
|
$ |
616,535 |
|
|
| Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
| |
|
September 30, 2026
|
|
|
December 31, 2025
|
|
| |
|
Amortized Cost
|
|
|
Fair Value
|
|
|
Amortized Cost
|
|
|
Fair Value
|
|
| |
|
(In Thousands)
|
|
|
Debt securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Due within one year
|
|
$ |
6,532 |
|
|
$ |
6,509 |
|
|
$ |
441,619 |
|
|
$ |
443,833 |
|
|
Due from one to five years
|
|
|
521,211 |
|
|
|
516,780 |
|
|
|
147,475 |
|
|
|
147,058 |
|
|
Due from five to ten years
|
|
|
300,936 |
|
|
|
295,759 |
|
|
|
332,436 |
|
|
|
325,957 |
|
|
Due after ten years
|
|
|
2,000 |
|
|
|
1,966 |
|
|
|
18,657 |
|
|
|
18,673 |
|
|
Mortgage-backed securities
|
|
|
154,363 |
|
|
|
147,489 |
|
|
|
133,126 |
|
|
|
133,304 |
|
| |
|
$ |
985,042 |
|
|
$ |
968,503 |
|
|
$ |
1,073,313 |
|
|
$ |
1,068,825 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Due within one year
|
|
$ |
100,730 |
|
|
$ |
99,948 |
|
|
$ |
53,787 |
|
|
$ |
52,811 |
|
|
Due from one to five years
|
|
|
130,074 |
|
|
|
121,157 |
|
|
|
204,192 |
|
|
|
195,279 |
|
|
Mortgage-backed securities
|
|
|
363,792 |
|
|
|
312,000 |
|
|
|
402,097 |
|
|
|
368,445 |
|
| |
|
$ |
594,596 |
|
|
$ |
533,105 |
|
|
$ |
660,076 |
|
|
$ |
616,535 |
|
|
| 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, 2026
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
(2,183 |
) |
|
$ |
438,386 |
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(2,183 |
) |
|
$ |
438,386 |
|
|
Mortgage-backed securities
|
|
$ |
(5,921 |
) |
|
$ |
132,457 |
|
|
$ |
(953 |
) |
|
$ |
14,924 |
|
|
$ |
(6,874 |
) |
|
$ |
147,381 |
|
|
State and municipal securities
|
|
|
- |
|
|
|
- |
|
|
|
(625 |
) |
|
|
8,786 |
|
|
|
(625 |
) |
|
|
8,786 |
|
|
Corporate debt
|
|
|
(4,113 |
) |
|
|
159,731 |
|
|
|
(3,940 |
) |
|
|
102,832 |
|
|
|
(8,053 |
) |
|
|
262,563 |
|
|
Total
|
|
$ |
(12,217 |
) |
|
$ |
730,574 |
|
|
$ |
(5,518 |
) |
|
$ |
126,542 |
|
|
$ |
(17,735 |
) |
|
$ |
857,116 |
|
|
Debt securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(9,348 |
) |
|
$ |
215,437 |
|
|
$ |
(9,348 |
) |
|
$ |
215,437 |
|
|
Mortgage-backed securities
|
|
|
(1,447 |
) |
|
|
35,941 |
|
|
|
(50,345 |
) |
|
|
274,456 |
|
|
|
(51,792 |
) |
|
|
310,397 |
|
|
State and municipal securities
|
|
|
- |
|
|
|
- |
|
|
|
(351 |
) |
|
|
4,167 |
|
|
|
(351 |
) |
|
|
4,167 |
|
|
Total
|
|
$ |
(1,447 |
) |
|
$ |
35,941 |
|
|
$ |
(60,044 |
) |
|
$ |
494,060 |
|
|
$ |
(61,491 |
) |
|
$ |
530,001 |
|
|
December 31, 2025
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Mortgage-backed securities
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(852 |
) |
|
$ |
22,662 |
|
|
$ |
(852 |
) |
|
$ |
22,662 |
|
|
State and municipal securities
|
|
|
- |
|
|
|
- |
|
|
|
(554 |
) |
|
|
9,363 |
|
|
|
(554 |
) |
|
|
9,363 |
|
|
Corporate debt
|
|
|
(984 |
) |
|
|
77,583 |
|
|
|
(8,226 |
) |
|
|
155,724 |
|
|
|
(9,210 |
) |
|
|
233,307 |
|
|
Total
|
|
$ |
(984 |
) |
|
$ |
77,583 |
|
|
$ |
(9,632 |
) |
|
$ |
187,749 |
|
|
$ |
(10,616 |
) |
|
$ |
265,332 |
|
|
Debt securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(9,589 |
) |
|
$ |
240,032 |
|
|
$ |
(9,589 |
) |
|
$ |
240,032 |
|
|
Mortgage-backed securities
|
|
|
- |
|
|
|
- |
|
|
|
(34,395 |
) |
|
|
325,307 |
|
|
|
(34,395 |
) |
|
|
325,307 |
|
|
State and municipal securities
|
|
|
(34 |
) |
|
|
2,954 |
|
|
|
(266 |
) |
|
|
4,604 |
|
|
|
(300 |
) |
|
|
7,558 |
|
|
Total
|
|
$ |
(34 |
) |
|
$ |
2,954 |
|
|
$ |
(44,250 |
) |
|
$ |
569,943 |
|
|
$ |
(44,284 |
) |
|
$ |
572,897 |
|
|
| Debt Securities, Available-for-Sale [Table Text Block] |
| |
|
Three Months Ended September 30,
|
|
|
Nine Months Ended September 30,
|
|
| |
|
2026
|
|
|
2025
|
|
|
2026
|
|
|
2025
|
|
| |
|
(In Thousands)
|
|
|
(In Thousands)
|
|
|
Sale proceeds
|
|
$ |
430,285 |
|
|
$ |
76,002 |
|
|
$ |
430,285 |
|
|
$ |
137,499 |
|
|
Gross realized gains (losses)
|
|
|
148 |
|
|
|
(7,812 |
) |
|
|
148 |
|
|
|
(16,375 |
) |
|
Net realized gains (losses)
|
|
$ |
148 |
|
|
$ |
(7,812 |
) |
|
$ |
148 |
|
|
$ |
(16,375 |
) |
|