Note 2 - Investment Securities (Tables)
|
6 Months Ended |
Jun. 30, 2026 |
| Notes Tables |
|
| Marketable Securities [Table Text Block] |
| | | June 30, 2026 | |
| | | | | | | Gross | | | Gross | | | | | | | | | |
| | | Amortized | | | Unrealized | | | Unrealized | | | | | | | Fair | |
| | | Cost | | | Gains | | | Losses | | | ACL | | | Value | |
| | | (In Thousands) | |
| Available-for-sale: | | | | | | | | | | | | | | | | | | | | |
| U.S. government and agency obligations | | $ | 3,904 | | | $ | 34 | | | $ | (108 | ) | | $ | - | | | $ | 3,830 | |
| U.S. treasury obligations | | | 47,685 | | | | - | | | | (3,587 | ) | | | - | | | | 44,098 | |
| Municipal obligations | | | 134,912 | | | | 5 | | | | (9,252 | ) | | | - | | | | 125,665 | |
| Corporate obligations | | | 1,000 | | | | - | | | | (3 | ) | | | - | | | | 997 | |
| Mortgage-backed securities | | | 26,056 | | | | 164 | | | | (982 | ) | | | - | | | | 25,238 | |
| Collateralized mortgage obligations | | | 83,938 | | | | 35 | | | | (4,424 | ) | | | - | | | | 79,549 | |
| Asset-backed securities | | | 6,272 | | | | 36 | | | | (9 | ) | | | - | | | | 6,299 | |
| Total | | $ | 303,767 | | | $ | 274 | | | $ | (18,365 | ) | | $ | - | | | $ | 285,676 | |
| | | December 31, 2025 | |
| | | | | | | Gross | | | Gross | | | | | | | | | |
| | | Amortized | | | Unrealized | | | Unrealized | | | | | | | Fair | |
| | | Cost | | | Gains | | | Losses | | | ACL | | | Value | |
| | | (In Thousands) | |
| Available-for-sale: | | | | | | | | | | | | | | | | | | | | |
| U.S. government and agency obligations | | $ | 4,179 | | | $ | 62 | | | $ | (86 | ) | | $ | - | | | $ | 4,155 | |
| U.S. treasury obligations | | | 47,665 | | | | - | | | | (3,357 | ) | | | - | | | | 44,308 | |
| Municipal obligations | | | 127,469 | | | | 53 | | | | (9,198 | ) | | | - | | | | 118,324 | |
| Corporate obligations | | | 2,000 | | | | - | | | | (29 | ) | | | - | | | | 1,971 | |
| Mortgage-backed securities | | | 27,222 | | | | 180 | | | | (908 | ) | | | - | | | | 26,494 | |
| Collateralized mortgage obligations | | | 83,907 | | | | 49 | | | | (4,295 | ) | | | - | | | | 79,661 | |
| Asset-backed securities | | | 6,720 | | | | 60 | | | | (1 | ) | | | - | | | | 6,779 | |
| Total | | $ | 299,162 | | | $ | 404 | | | $ | (17,874 | ) | | $ | - | | | $ | 281,692 | |
|
| Investments Classified by Contractual Maturity Date [Table Text Block] |
| | | June 30, 2026 | |
| | | Amortized | | | Fair | |
| | | Cost | | | Value | |
| | | (In Thousands) | |
| Due in one year or less | | $ | 1,055 | | | $ | 1,051 | |
| Due from one to five years | | | 51,016 | | | | 47,991 | |
| Due from five to ten years | | | 69,028 | | | | 61,913 | |
| Due after ten years | | | 72,674 | | | | 69,934 | |
| | | | 193,773 | | | | 180,889 | |
| Mortgage-backed securities | | | 26,056 | | | | 25,238 | |
| Collateralized mortgage obligations | | | 83,938 | | | | 79,549 | |
| Total | | $ | 303,767 | | | $ | 285,676 | |
|
| Gain (Loss) on Securities [Table Text Block] |
| | | June 30, 2026 | |
| | | Less than 12 Months | | | 12 Months or Longer | |
| | | | | | | Gross | | | | | | | Gross | |
| | | Fair | | | Unrealized | | | Fair | | | Unrealized | |
| | | Value | | | Losses | | | Value | | | Losses | |
| | | (In Thousands) | |
| U.S. government and agency obligations | | $ | - | | | $ | - | | | $ | 1,826 | | | $ | (108 | ) |
| U.S. treasury obligations | | | - | | | | - | | | | 44,098 | | | | (3,587 | ) |
| Municipal obligations | | | 24,321 | | | | (202 | ) | | | 98,317 | | | | (9,050 | ) |
| Corporate obligations | | | 997 | | | | (3 | ) | | | - | | | | - | |
| Mortgage-backed securities and collateralized mortgage obligations | | | 17,453 | | | | (117 | ) | | | 69,285 | | | | (5,289 | ) |
| Asset-backed securities | | | 3,103 | | | | (8 | ) | | | 130 | | | | (1 | ) |
| Total | | $ | 45,874 | | | $ | (330 | ) | | $ | 213,656 | | | $ | (18,035 | ) |
| | | December 31, 2025 | |
| | | Less than 12 months | | | 12 months or Longer | |
| | | | | | | Gross | | | | | | | Gross | |
| | | Fair | | | Unrealized | | | Fair | | | Unrealized | |
| | | Value | | | Losses | | | Value | | | Losses | |
| | | (In Thousands) | |
| U.S. government and agency obligations | | $ | - | | | $ | - | | | $ | 1,848 | | | $ | (86 | ) |
| U.S. treasury obligations | | | - | | | | - | | | | 44,308 | | | | (3,357 | ) |
| Municipal obligations | | | 4,250 | | | | (101 | ) | | | 107,365 | | | | (9,097 | ) |
| Corporate obligations | | | - | | | | - | | | | 1,971 | | | | (29 | ) |
| Mortgage-backed securities and collateralized mortgage obligations | | | 5,961 | | | | (42 | ) | | | 73,924 | | | | (5,161 | ) |
| Asset-backed securities | | | - | | | | - | | | | 164 | | | | (1 | ) |
| Total | | $ | 10,211 | | | $ | (143 | ) | | $ | 229,580 | | | $ | (17,731 | ) |
|