Note 4 - Securities (Tables)
|
6 Months Ended |
Jun. 30, 2026 |
|---|
| Notes Tables |
|
| Unrealized Gain (Loss) on Investments [Table Text Block] |
| |
|
|
|
|
|
Gross
|
|
|
Gross
|
|
|
|
|
|
| |
|
Amortized
|
|
|
Unrealized
|
|
|
Unrealized
|
|
|
Fair
|
|
| |
|
Cost
|
|
|
Gain
|
|
|
Loss
|
|
|
Value
|
|
|
June 30, 2026
|
|
(In Thousands)
|
|
|
Debt securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
430,267 |
|
|
$ |
655 |
|
|
$ |
- |
|
|
$ |
430,922 |
|
|
Mortgage-backed securities
|
|
|
163,452 |
|
|
|
268 |
|
|
|
(1,589 |
) |
|
|
162,131 |
|
|
State and municipal securities
|
|
|
10,357 |
|
|
|
1 |
|
|
|
(541 |
) |
|
|
9,817 |
|
|
Corporate debt
|
|
|
396,209 |
|
|
|
3,123 |
|
|
|
(7,151 |
) |
|
|
392,181 |
|
|
Total
|
|
$ |
1,000,285 |
|
|
$ |
4,047 |
|
|
$ |
(9,281 |
) |
|
$ |
995,051 |
|
|
Debt securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
249,730 |
|
|
$ |
- |
|
|
$ |
(9,020 |
) |
|
$ |
240,710 |
|
|
Mortgage-backed securities
|
|
|
376,735 |
|
|
|
445 |
|
|
|
(36,333 |
) |
|
|
340,847 |
|
|
State and municipal securities
|
|
|
9,015 |
|
|
|
- |
|
|
|
(292 |
) |
|
|
8,723 |
|
|
Total
|
|
$ |
635,480 |
|
|
$ |
445 |
|
|
$ |
(45,645 |
) |
|
$ |
590,280 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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] |
| |
|
June 30, 2026
|
|
|
December 31, 2025
|
|
| |
|
Amortized Cost
|
|
|
Fair Value
|
|
|
Amortized Cost
|
|
|
Fair Value
|
|
| |
|
(In Thousands)
|
|
|
Debt securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Due within one year
|
|
$ |
432,268 |
|
|
$ |
432,900 |
|
|
$ |
441,619 |
|
|
$ |
443,833 |
|
|
Due from one to five years
|
|
|
74,516 |
|
|
|
72,854 |
|
|
|
147,475 |
|
|
|
147,058 |
|
|
Due from five to ten years
|
|
|
328,049 |
|
|
|
325,176 |
|
|
|
332,436 |
|
|
|
325,957 |
|
|
Due after ten years
|
|
|
2,000 |
|
|
|
1,990 |
|
|
|
18,657 |
|
|
|
18,673 |
|
|
Mortgage-backed securities
|
|
|
163,452 |
|
|
|
162,131 |
|
|
|
133,126 |
|
|
|
133,304 |
|
| |
|
$ |
1,000,285 |
|
|
$ |
995,051 |
|
|
$ |
1,073,313 |
|
|
$ |
1,068,825 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Due within one year
|
|
$ |
128,695 |
|
|
$ |
127,162 |
|
|
$ |
53,787 |
|
|
$ |
52,811 |
|
|
Due from one to five years
|
|
|
130,050 |
|
|
|
122,271 |
|
|
|
204,192 |
|
|
|
195,279 |
|
|
Mortgage-backed securities
|
|
|
376,735 |
|
|
|
340,847 |
|
|
|
402,097 |
|
|
|
368,445 |
|
| |
|
$ |
635,480 |
|
|
$ |
590,280 |
|
|
$ |
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)
|
|
|
June 30, 2026
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Debt securities available-for-sale
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Mortgage-backed securities
|
|
$ |
(764 |
) |
|
$ |
118,999 |
|
|
$ |
(825 |
) |
|
$ |
17,451 |
|
|
$ |
(1,589 |
) |
|
$ |
136,450 |
|
|
State and municipal securities
|
|
|
- |
|
|
|
- |
|
|
|
(541 |
) |
|
|
9,372 |
|
|
|
(541 |
) |
|
|
9,372 |
|
|
Corporate debt
|
|
|
(1,491 |
) |
|
|
117,485 |
|
|
|
(5,660 |
) |
|
|
126,610 |
|
|
|
(7,151 |
) |
|
|
244,095 |
|
|
Total
|
|
$ |
(2,255 |
) |
|
$ |
236,484 |
|
|
$ |
(7,026 |
) |
|
$ |
153,433 |
|
|
$ |
(9,281 |
) |
|
$ |
389,917 |
|
|
Debt securities held-to-maturity
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities
|
|
$ |
- |
|
|
$ |
- |
|
|
$ |
(9,020 |
) |
|
$ |
240,710 |
|
|
$ |
(9,020 |
) |
|
$ |
240,710 |
|
|
Mortgage-backed securities
|
|
|
(6 |
) |
|
|
2,360 |
|
|
|
(36,327 |
) |
|
|
300,229 |
|
|
|
(36,333 |
) |
|
|
302,589 |
|
|
State and municipal securities
|
|
|
- |
|
|
|
- |
|
|
|
(292 |
) |
|
|
7,222 |
|
|
|
(292 |
) |
|
|
7,222 |
|
|
Total
|
|
$ |
(6 |
) |
|
$ |
2,360 |
|
|
$ |
(45,639 |
) |
|
$ |
548,161 |
|
|
$ |
(45,645 |
) |
|
$ |
550,521 |
|
|
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] |
| |
|
Six Months Ended June 30,
|
|
| |
|
2026
|
|
|
2025
|
|
| |
|
(In Thousands)
|
|
|
Sale proceeds
|
|
$ |
- |
|
|
$ |
61,897 |
|
|
Gross realized losses
|
|
|
- |
|
|
|
(8,563 |
) |
|
Net realized losses
|
|
$ |
- |
|
|
$ |
(8,563 |
) |
|