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v3.25.3

Note 2 - Securities Available for Sale (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Debt Securities, Available-for-Sale [Table Text Block] |
|  |  |  |  |  | Gross |  |  | Gross |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agency obligations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
One through five years |  | $ | 3,000,000 |  |  | $ | — |  |  | $ | (70,821 | ) |  | $ | 2,929,179 |
Corporate bonds due in: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
One through five years |  |  | 10,131,978 |  |  |  | 80,442 |  |  |  | (210,021 | ) |  |  | 10,002,399 |
Five through ten years |  |  | 30,585,848 |  |  |  | 520,032 |  |  |  | (852,504 | ) |  |  | 30,253,376 |
Greater than ten years |  |  | 5,849,234 |  |  |  | 225,891 |  |  |  | — |  |  |  | 6,075,125 |
Municipal obligations due in: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Five through ten years |  |  | 505,933 |  |  |  | — |  |  |  | (81,653 | ) |  |  | 424,280 |
MBS – residential |  |  | 99,876,238 |  |  |  | 1,066,110 |  |  |  | (1,611,337 | ) |  |  | 99,331,011 |
MBS – commercial |  |  | 13,385,623 |  |  |  | — |  |  |  | (1,653,754 | ) |  |  | 11,731,869 |
Total |  | $ | 163,334,854 |  |  | $ | 1,892,475 |  |  | $ | (4,480,090 | ) |  | $ | 160,747,239 |
|  |  |  |  |  | Gross |  |  | Gross |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agency obligations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Less than one year |  | $ | 10,000,000 |  |  | $ | — |  |  | $ | (55,870 | ) |  | $ | 9,944,130 |
One through five years |  |  | 3,000,000 |  |  |  | — |  |  |  | (151,590 | ) |  |  | 2,848,410 |
Corporate bonds due in: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Less than one year |  |  | 350,000 |  |  |  | 1,090 |  |  |  | — |  |  |  | 351,090 |
One through five years |  |  | 9,112,269 |  |  |  | 83,414 |  |  |  | (64,547 | ) |  |  | 9,131,136 |
Five through ten years |  |  | 25,410,219 |  |  |  | 202,205 |  |  |  | (1,389,376 | ) |  |  | 24,223,048 |
Greater than ten years |  |  | 4,321,924 |  |  |  | 202,576 |  |  |  | — |  |  |  | 4,524,500 |
Municipal obligations due in: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Greater than ten years |  |  | 506,706 |  |  |  | — |  |  |  | (108,431 | ) |  |  | 398,275 |
MBS – residential |  |  | 76,661,752 |  |  |  | 53,730 |  |  |  | (2,162,673 | ) |  |  | 74,552,809 |
MBS – commercial |  |  | 16,515,823 |  |  |  | — |  |  |  | (2,181,774 | ) |  |  | 14,334,049 |
Total |  | $ | 145,878,693 |  |  | $ | 543,015 |  |  | $ | (6,114,261 | ) |  | $ | 140,307,447 |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] |
|  | Less Than 12 Months |  |  | 12 Months or More |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agency obligations |  | $ | — |  |  | $ | — |  |  | $ | 2,929,179 |  |  | $ | (70,821 | ) |  | $ | 2,929,179 |  |  | $ | (70,821 | )
Corporate bonds |  |  | 3,433,035 |  |  |  | (60,112 | ) |  |  | 11,226,252 |  |  |  | (1,002,413 | ) |  |  | 14,659,287 |  |  |  | (1,062,525 | )
Municipal obligations |  |  | — |  |  |  | — |  |  |  | 424,280 |  |  |  | (81,653 | ) |  |  | 424,280 |  |  |  | (81,653 | )
MBS – residential |  |  | 708,318 |  |  |  | (4,281 | ) |  |  | 13,471,456 |  |  |  | (1,607,056 | ) |  |  | 14,179,774 |  |  |  | (1,611,337 | )
MBS – commercial |  |  | — |  |  |  | — |  |  |  | 11,731,870 |  |  |  | (1,653,754 | ) |  |  | 11,731,870 |  |  |  | (1,653,754 | )
Total |  | $ | 4,141,353 |  |  | $ | (64,393 | ) |  | $ | 39,783,037 |  |  | $ | (4,415,697 | ) |  | $ | 43,924,390 |  |  | $ | (4,480,090 | )
|  | Less Than 12 Months |  |  | 12 Months or More |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agency obligations |  | $ | — |  |  | $ | — |  |  | $ | 12,792,540 |  |  | $ | (207,460 | ) |  | $ | 12,792,540 |  |  | $ | (207,460 | )
Corporate bonds |  |  | - |  |  |  | - |  |  |  | 15,965,261 |  |  |  | (1,453,923 | ) |  |  | 15,965,261 |  |  |  | (1,453,923 | )
Municipal obligations |  |  | - |  |  |  | - |  |  |  | 398,275 |  |  |  | (108,431 | ) |  |  | 398,275 |  |  |  | (108,431 | )
MBS – residential |  |  | 43,739,606 |  |  |  | (120,511 | ) |  |  | 11,741,816 |  |  |  | (2,042,162 | ) |  |  | 55,481,422 |  |  |  | (2,162,673 | )
MBS – commercial |  |  | - |  |  |  | - |  |  |  | 14,334,049 |  |  |  | (2,181,774 | ) |  |  | 14,334,049 |  |  |  | (2,181,774 | )
Total |  | $ | 43,739,606 |  |  | $ | (120,511 | ) |  | $ | 55,231,941 |  |  | $ | (5,993,750 | ) |  | $ | 98,971,547 |  |  | $ | (6,114,261 | )

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