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Investment Securities (Tables) | 3 Months Ended
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Mar. 31, 2024
Investment Securities |
Schedule of amortized cost and estimated fair values of investment securities available-for-sale | The amortized cost and estimated fair values of investment securities available-for-sale at March 31, 2024 and December 31, 2023 are as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2024
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | Estimated
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
March 31, 2024 |  | Cost |  | Gains |  | Losses |  | Value
U.S. Government Agencies | ​ | $ | 1,500 | ​ | $ | — | ​ | $ | (40) | ​ | $ | 1,460
Mortgage-Backed Securities | ​ |  | 59,138 | ​ |  | 8 | ​ |  | (8,350) | ​ |  | 50,796
Collateralized Mortgage Obligations | ​ |  | 1,658 | ​ |  | — | ​ |  | (140) | ​ |  | 1,518
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 62,296 | ​ | $ | 8 | ​ | $ | (8,530) | ​ | $ | 53,774
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2023
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | Estimated
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
December 31, 2023 |  | Cost |  | Gains |  | Losses |  | Value
U.S. Government Agencies | ​ | $ | 1,000 | ​ | $ | — | ​ | $ | (34) | ​ | $ | 966
Mortgage-Backed Securities | ​ |  | 74,072 | ​ |  | 15 | ​ |  | (8,759) | ​ |  | 65,328
Collateralized Mortgage Obligations | ​ |  | 1,733 | ​ |  | — | ​ |  | (126) | ​ |  | 1,607
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 76,805 | ​ | $ | 15 | ​ | $ | (8,919) | ​ | $ | 67,901
Schedule of gross unrealized losses and estimated fair value of investment securities | The following tables show the gross unrealized losses and estimated fair value of investment securities available-for-sale for which an allowance for credit losses has not been recorded by category and length of time that securities have been in a continuous unrealized loss position at March 31, 2024, and December 31, 2023 (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Securities | ​ | Securities | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | With Losses Under | ​ | With Losses Over | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 12 Months | ​ | 12 Months | ​ | Total
​ | ​ | ​ | ​ | ​ | Gross | ​ | ​ | ​ | ​ | Gross | ​ | ​ | ​ | ​ | Gross
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
March 31, 2024 |  | Value |  | Loss |  | Value |  | Loss |  | Value |  | Loss
U.S. Government Agencies | ​ | $ | — | ​ | $ | — | ​ | $ | 1,460 | ​ | $ | (40) | ​ | $ | 1,460 | ​ | $ | (40)
Mortgage-Backed Securities | ​ |  | 5,253 | ​ |  | (33) | ​ |  | 42,991 | ​ |  | (8,317) | ​ |  | 48,244 | ​ |  | (8,350)
Collateralized Mortgage Obligations | ​ |  | — | ​ |  | — | ​ |  | 1,518 | ​ |  | (140) | ​ |  | 1,518 | ​ |  | (140)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 5,253 | ​ | $ | (33) | ​ | $ | 45,969 | ​ | $ | (8,497) | ​ | $ | 51,222 | ​ | $ | (8,530)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Securities | ​ | Securities | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | With Losses Under | ​ | With Losses Over | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 12 Months | ​ | 12 Months | ​ | Total
​ | ​ | ​ | ​ | ​ | Gross | ​ | ​ | ​ | ​ | Gross | ​ | ​ | ​ | ​ | Gross
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
December 31, 2023 |  | Value |  | Loss |  | Value |  | Loss |  | Value |  | Loss
U.S. Government Agencies | ​ | $ | — | ​ | $ | — | ​ | $ | 966 | ​ | $ | (34) | ​ | $ | 966 | ​ | $ | (34)
Mortgage-Backed Securities | ​ |  | 498 | ​ |  | (2) | ​ |  | 63,384 | ​ |  | (8,757) | ​ |  | 63,882 | ​ |  | (8,759)
Collateralized Mortgage Obligations | ​ |  | — | ​ |  | — | ​ |  | 1,607 | ​ |  | (126) | ​ |  | 1,607 | ​ |  | (126)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 498 | ​ | $ | (2) | ​ | $ | 65,957 | ​ | $ | (8,917) | ​ | $ | 66,455 | ​ | $ | (8,919)
Schedule of contractual maturities | The amortized cost and estimated fair value of securities classified as available-for-sale at March 31, 2024, by contractual maturity, are shown in the table below (in thousands). ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Amortized |  | Fair
​ | ​ | Cost | ​ | Value
Available-for-Sale |  | ​ |  |  | ​ |
Due in 1 Year or Less | ​ | $ | — | ​ | $ | —
Due after 1 Year through 5 Years | ​ |  | 690 | ​ |  | 677
Due after 5 Years through 10 Years | ​ |  | — | ​ |  | —
Due after 10 Years | ​ |  | 61,606 | ​ |  | 53,097
​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 62,296 | ​ | $ | 53,774

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