| Debt Securities, Available-for-Sale [Table Text Block] |
| December 31, 2025 |
|
U.S. Treasuries |
|
|
U.S. government agency obligations |
|
|
Municipal obligations |
|
|
Mortgage-backed residential obligations |
|
|
Collateralized mortgage obligations |
|
|
Total available-for-sale |
|
| |
|
|
|
|
|
(Dollars in thousands) |
|
| 1 year or less |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
198 |
|
|
$ |
— |
|
|
$ |
1,412 |
|
|
$ |
1,610 |
|
| 1 to 5 years |
|
|
7,085 |
|
|
|
7,208 |
|
|
|
1,202 |
|
|
|
8,860 |
|
|
|
17,757 |
|
|
|
42,112 |
|
| 5 to 10 years |
|
|
— |
|
|
|
1,326 |
|
|
|
3,642 |
|
|
|
14,336 |
|
|
|
5,918 |
|
|
|
25,222 |
|
| After 10 years |
|
|
— |
|
|
|
— |
|
|
|
7,104 |
|
|
|
573 |
|
|
|
2,098 |
|
|
|
9,775 |
|
| Fair value |
|
$ |
7,085 |
|
|
$ |
8,534 |
|
|
$ |
12,146 |
|
|
$ |
23,769 |
|
|
$ |
27,185 |
|
|
$ |
78,719 |
|
| Gross unrealized gains |
|
|
4 |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
1 |
|
|
|
5 |
|
| Gross unrealized losses |
|
|
(7 |
) |
|
|
(685 |
) |
|
|
(1,829 |
) |
|
|
(2,990 |
) |
|
|
(2,552 |
) |
|
|
(8,063 |
) |
| Amortized cost |
|
$ |
7,088 |
|
|
$ |
9,219 |
|
|
$ |
13,975 |
|
|
$ |
26,759 |
|
|
$ |
29,736 |
|
|
$ |
86,777 |
|
| December 31, 2024 |
|
U.S. Treasuries |
|
|
U.S. government agency obligations |
|
|
Municipal obligations |
|
|
Mortgage-backed residential obligations |
|
|
Collateralized mortgage obligations |
|
|
Total available-for-sale |
|
| |
|
|
|
|
|
(Dollars in thousands) |
|
| 1 year or less |
|
$ |
— |
|
|
$ |
1,000 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
1,000 |
|
| 1 to 5 years |
|
|
— |
|
|
|
3,047 |
|
|
|
1,452 |
|
|
|
8,971 |
|
|
|
15,086 |
|
|
|
28,556 |
|
| 5 to 10 years |
|
|
— |
|
|
|
4,610 |
|
|
|
2,401 |
|
|
|
15,794 |
|
|
|
7,786 |
|
|
|
30,591 |
|
| After 10 years |
|
|
— |
|
|
|
— |
|
|
|
7,883 |
|
|
|
1,150 |
|
|
|
2,069 |
|
|
|
11,102 |
|
| Fair value |
|
$ |
— |
|
|
$ |
8,657 |
|
|
$ |
11,736 |
|
|
$ |
25,915 |
|
|
$ |
24,941 |
|
|
$ |
71,249 |
|
| Gross unrealized gains |
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
| Gross unrealized losses |
|
|
— |
|
|
|
(1,062 |
) |
|
|
(2,367 |
) |
|
|
(4,766 |
) |
|
|
(3,842 |
) |
|
|
(12,037 |
) |
| Amortized cost |
|
$ |
— |
|
|
$ |
9,719 |
|
|
$ |
14,103 |
|
|
$ |
30,681 |
|
|
$ |
28,783 |
|
|
$ |
83,286 |
|
|
| Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] |
| |
|
Less than 12 Months |
|
|
12 Months or Longer |
|
|
Total |
|
| |
|
Fair |
|
|
Unrealized |
|
|
Fair |
|
|
Unrealized |
|
|
Fair |
|
|
Unrealized |
|
| December 31, 2025 |
|
Value |
|
|
Losses |
|
|
Value |
|
|
Losses |
|
|
Value |
|
|
Losses |
|
| |
|
|
(Dollars in thousands) |
| U.S. Treasuries |
|
$ |
2,990 |
|
|
$ |
7 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
2,990 |
|
|
$ |
7 |
|
| U.S. government agency obligations |
|
|
1,000 |
|
|
|
1 |
|
|
|
7,534 |
|
|
|
684 |
|
|
|
8,534 |
|
|
|
685 |
|
| Municipal obligations |
|
|
— |
|
|
|
— |
|
|
|
12,146 |
|
|
|
1,829 |
|
|
|
12,146 |
|
|
|
1,829 |
|
| Mortgage-backed residential obligations |
|
|
— |
|
|
|
— |
|
|
|
23,769 |
|
|
|
2,990 |
|
|
|
23,769 |
|
|
|
2,990 |
|
| Collateralized mortgage obligations |
|
|
1,530 |
|
|
|
24 |
|
|
|
24,654 |
|
|
|
2,528 |
|
|
|
26,184 |
|
|
|
2,552 |
|
| Total |
|
$ |
5,520 |
|
|
$ |
32 |
|
|
$ |
68,103 |
|
|
$ |
8,031 |
|
|
$ |
73,623 |
|
|
$ |
8,063 |
|
| December 31, 2024 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. government agency obligations |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
8,657 |
|
|
$ |
1,062 |
|
|
$ |
8,657 |
|
|
$ |
1,062 |
|
| Municipal obligations |
|
|
467 |
|
|
|
28 |
|
|
|
11,269 |
|
|
|
2,339 |
|
|
|
11,736 |
|
|
|
2,367 |
|
| Mortgage-backed residential obligations |
|
|
— |
|
|
|
— |
|
|
|
25,915 |
|
|
|
4,766 |
|
|
|
25,915 |
|
|
|
4,766 |
|
| Collateralized mortgage obligations |
|
|
— |
|
|
|
— |
|
|
|
24,941 |
|
|
|
3,842 |
|
|
|
24,941 |
|
|
|
3,842 |
|
| Total |
|
$ |
467 |
|
|
$ |
28 |
|
|
$ |
70,782 |
|
|
$ |
12,009 |
|
|
$ |
71,249 |
|
|
$ |
12,037 |
|
|