| Debt Securities, Available-for-Sale [Table Text Block] |
| March 31, 2025 |
|
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 |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
880 |
|
|
$ |
880 |
|
| 1 to 5 years |
|
|
3,039 |
|
|
|
1,459 |
|
|
|
9,094 |
|
|
|
13,881 |
|
|
|
27,473 |
|
| 5 to 10 years |
|
|
4,635 |
|
|
|
2,395 |
|
|
|
15,410 |
|
|
|
8,421 |
|
|
|
30,861 |
|
| After 10 years |
|
|
— |
|
|
|
7,819 |
|
|
|
1,164 |
|
|
|
2,122 |
|
|
|
11,105 |
|
| Fair value |
|
|
7,674 |
|
|
|
11,673 |
|
|
|
25,668 |
|
|
|
25,304 |
|
|
|
70,319 |
|
| Gross unrealized gains |
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
| Gross unrealized losses |
|
|
(866 |
) |
|
|
(2,417 |
) |
|
|
(4,034 |
) |
|
|
(3,212 |
) |
|
|
(10,529 |
) |
| Amortized cost |
|
$ |
8,540 |
|
|
$ |
14,090 |
|
|
$ |
29,702 |
|
|
$ |
28,516 |
|
|
$ |
80,848 |
|
| December 31, 2024 |
|
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 |
|
| |
|
(Dollars in thousands) |
|
| |
|
Fair |
|
|
Unrealized |
|
|
Fair |
|
|
Unrealized |
|
|
Fair |
|
|
Unrealized |
|
| |
|
Value |
|
|
Losses |
|
|
Value |
|
|
Losses |
|
|
Value |
|
|
Losses |
|
| March 31, 2025 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. government agency obligations |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
7,674 |
|
|
$ |
866 |
|
|
$ |
7,674 |
|
|
$ |
866 |
|
| Municipal obligations |
|
|
— |
|
|
|
— |
|
|
|
11,673 |
|
|
|
2,417 |
|
|
|
11,673 |
|
|
|
2,417 |
|
| Mortgage-backed residential obligations |
|
|
— |
|
|
|
— |
|
|
|
25,668 |
|
|
|
4,034 |
|
|
|
25,668 |
|
|
|
4,034 |
|
| Collateralized mortgage obligations |
|
|
— |
|
|
|
— |
|
|
|
25,304 |
|
|
|
3,212 |
|
|
|
25,304 |
|
|
|
3,212 |
|
| Total |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
70,319 |
|
|
$ |
10,529 |
|
|
$ |
70,319 |
|
|
$ |
10,529 |
|
| 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 |
|
|