| Debt Securities, Available-for-sale [Table Text Block] |
| December 31, 2021 |
|
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 |
|
$ |
— |
|
|
$ |
1,631 |
|
|
$ |
356 |
|
|
$ |
1,064 |
|
|
$ |
3,051 |
|
| 1 to 5 years |
|
|
5,587 |
|
|
|
3,941 |
|
|
|
29,375 |
|
|
|
16,097 |
|
|
|
55,000 |
|
| 5 to 10 years |
|
|
4,466 |
|
|
|
2,244 |
|
|
|
12,417 |
|
|
|
11,976 |
|
|
|
31,103 |
|
| After 10 years |
|
$ |
— |
|
|
|
10,184 |
|
|
|
— |
|
|
|
1,612 |
|
|
|
11,796 |
|
| Fair value |
|
$ |
10,053 |
|
|
$ |
18,000 |
|
|
$ |
42,148 |
|
|
$ |
30,749 |
|
|
$ |
100,950 |
|
| Gross unrealized gains |
|
|
73 |
|
|
|
423 |
|
|
|
259 |
|
|
|
279 |
|
|
|
1,034 |
|
| Gross unrealized losses |
|
|
(78 |
) |
|
|
(14 |
) |
|
|
(612 |
) |
|
|
(443 |
) |
|
|
(1,147 |
) |
| Amortized cost |
|
$ |
10,058 |
|
|
$ |
17,591 |
|
|
$ |
42,501 |
|
|
$ |
30,913 |
|
|
$ |
101,063 |
|
| December 31, 2020 |
|
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 |
|
|
$ |
769 |
|
|
$ |
1,443 |
|
|
$ |
382 |
|
|
$ |
3,594 |
|
| 1 to 5 years |
|
|
4,863 |
|
|
|
3,726 |
|
|
|
34,485 |
|
|
|
14,452 |
|
|
$ |
57,526 |
|
| 5 to 10 years |
|
|
1,284 |
|
|
|
4,353 |
|
|
|
7,166 |
|
|
|
5,565 |
|
|
$ |
18,368 |
|
| After 10 years |
|
|
— |
|
|
|
2,132 |
|
|
|
— |
|
|
|
— |
|
|
$ |
2,132 |
|
| Fair value |
|
$ |
7,147 |
|
|
$ |
10,980 |
|
|
$ |
43,094 |
|
|
$ |
20,399 |
|
|
$ |
81,620 |
|
| Gross unrealized gains |
|
|
153 |
|
|
|
518 |
|
|
|
883 |
|
|
|
534 |
|
|
$ |
2,088 |
|
| Gross unrealized losses |
|
|
(17 |
) |
|
|
(18 |
) |
|
|
(21 |
) |
|
|
(66 |
) |
|
$ |
(122 |
) |
| Amortized cost |
|
$ |
7,011 |
|
|
$ |
10,480 |
|
|
$ |
42,232 |
|
|
$ |
19,931 |
|
|
$ |
79,654 |
|
|
| 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, 2021 |
|
Value |
|
|
Losses |
|
|
Value |
|
|
Losses |
|
|
Value |
|
|
Losses |
|
| |
|
|
(Dollars in thousands) |
| U.S. government agency obligations |
|
$ |
4,020 |
|
|
$ |
62 |
|
|
$ |
1,105 |
|
|
$ |
16 |
|
|
$ |
5,125 |
|
|
$ |
78 |
|
| Municipal obligations |
|
|
2,399 |
|
|
|
8 |
|
|
|
247 |
|
|
|
6 |
|
|
|
2,646 |
|
|
|
14 |
|
| Mortgage-backed residential obligations |
|
|
26,540 |
|
|
|
535 |
|
|
|
2,781 |
|
|
|
77 |
|
|
|
29,321 |
|
|
|
612 |
|
| Collateralized mortgage obligations |
|
|
16,715 |
|
|
|
338 |
|
|
|
4,386 |
|
|
|
105 |
|
|
|
21,101 |
|
|
|
443 |
|
| Total |
|
$ |
49,674 |
|
|
$ |
943 |
|
|
$ |
8,519 |
|
|
$ |
204 |
|
|
$ |
58,193 |
|
|
$ |
1,147 |
|
| December 31, 2020 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. government agency obligations |
|
$ |
1,284 |
|
|
$ |
17 |
|
|
$ |
- |
|
|
$ |
— |
|
|
$ |
1,284 |
|
|
$ |
17 |
|
| Municipal obligations |
|
|
— |
|
|
|
— |
|
|
|
238 |
|
|
|
18 |
|
|
|
238 |
|
|
|
18 |
|
| Mortgage-backed residential obligations |
|
|
5,265 |
|
|
|
16 |
|
|
|
1,170 |
|
|
|
5 |
|
|
|
6,435 |
|
|
|
21 |
|
| Collateralized mortgage obligations |
|
|
8,694 |
|
|
|
66 |
|
|
|
241 |
|
|
|
— |
|
|
|
8,935 |
|
|
|
66 |
|
| Total |
|
$ |
15,243 |
|
|
$ |
99 |
|
|
$ |
1,649 |
|
|
$ |
23 |
|
|
$ |
16,892 |
|
|
$ |
122 |
|
|