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Note 2 - Debt Securities (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] |
|  | September 30, 2025 |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 10,915 |  |  | $ | 5 |  |  | $ | - |  |  | $ | 10,920 |
Municipal securities |  |  | 10,352 |  |  |  | 2 |  |  |  | (25 | ) |  |  | 10,329 |
Corporate notes |  |  | 24,877 |  |  |  | - |  |  |  | (454 | ) |  |  | 24,423 |
Agency mortgage-backed securities |  |  | 96,062 |  |  |  | 233 |  |  |  | (10,653 | ) |  |  | 85,642 |
Total |  | $ | 142,206 |  |  | $ | 240 |  |  | $ | (11,132 | ) |  | $ | 131,314 |
|  | December 31, 2024 |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 55,760 |  |  | $ | 10 |  |  | $ | (1 | ) |  | $ | 55,769 |
Municipal securities |  |  | 13,949 |  |  |  | 2 |  |  |  | (114 | ) |  |  | 13,837 |
Corporate notes |  |  | 28,598 |  |  |  | - |  |  |  | (1,056 | ) |  |  | 27,542 |
Agency mortgage-backed securities |  |  | 86,380 |  |  |  | - |  |  |  | (13,679 | ) |  |  | 72,701 |
Total |  | $ | 184,687 |  |  | $ | 12 |  |  | $ | (14,850 | ) |  | $ | 169,849 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | September 30, 2025 |
|  | Amortized |  |  |  |  |
(Amounts in thousands) |  | Cost |  |  | Fair Value |
Available-for-sale debt securities |  |  |  |  |  |  |  |
Due within one year |  | $ | 19,591 |  |  | $ | 19,546 |
Due after one year but within five years |  |  | 26,553 |  |  |  | 26,126 |
|  |  | 46,144 |  |  |  | 45,672 |
Agency mortgage-backed securities |  |  | 96,062 |  |  |  | 85,642 |
Total debt securities available-for-sale |  | $ | 142,206 |  |  | $ | 131,314 |
Gain (Loss) on Securities [Table Text Block] |
|  | September 30, 2025 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |
Municipal securities |  |  | 694 |  |  |  | (1 | ) |  |  | 4,748 |  |  |  | (24 | ) |  |  | 5,442 |  |  |  | (25 | )
Corporate notes |  |  | - |  |  |  | - |  |  |  | 24,423 |  |  |  | (454 | ) |  |  | 24,423 |  |  |  | (454 | )
Agency mortgage-backed securities |  |  | 1,994 |  |  |  | (12 | ) |  |  | 67,149 |  |  |  | (10,641 | ) |  |  | 69,143 |  |  |  | (10,653 | )
Total |  | $ | 2,688 |  |  | $ | (13 | ) |  | $ | 96,320 |  |  | $ | (11,119 | ) |  | $ | 99,008 |  |  | $ | (11,132 | )
|  | December 31, 2024 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 4,984 |  |  | $ | (1 | ) |  | $ | - |  |  | $ | - |  |  | $ | 4,984 |  |  | $ | (1 | )
Municipal securities |  |  | 3,914 |  |  |  | (16 | ) |  |  | 6,638 |  |  |  | (98 | ) |  |  | 10,552 |  |  |  | (114 | )
Corporate notes |  | $ | - |  |  | $ | - |  |  |  | 27,542 |  |  |  | (1,056 | ) |  |  | 27,542 |  |  |  | (1,056 | )
Agency mortgage-backed securities |  |  | 4,100 |  |  |  | (81 | ) |  |  | 68,601 |  |  |  | (13,598 | ) |  |  | 72,701 |  |  |  | (13,679 | )
Total |  | $ | 12,998 |  |  | $ | (98 | ) |  | $ | 102,781 |  |  | $ | (14,752 | ) |  | $ | 115,779 |  |  | $ | (14,850 | )

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