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Long-term debt | 12 Months Ended
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Dec. 31, 2022
Long-term debt. |
Long-term debt | 11. Long-term debt: Long-term debt, consisting of one advance from the FHLB, at December 31, 2022 and 2021 is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Interest Rate | ​ |  | ​ | ​ |  | ​ | ​ |
(Dollars in thousands, except percents) |  | Fixed | ​ | ​ | ​ | December 31, 2022 | ​ | ​ | December 31, 2021 |
March 2023 | ​ | 4.69 | % | ​ | $ | 555 | ​ | ​ | 2,711 | ​
​ | ​ | ​ | ​ | ​ | $ | 555 | ​ | $ | 2,711 | ​
​ Maturities of long-term debt, by contractual maturity, in years subsequent to December 31, 2022 are as follows: ​
​ | ​ | ​ | ​ | ​
(Dollars in thousands) | ​ | ​ | ​ | ​
2023 | ​ | $ | 555 | ​
​ | ​ | $ | 555 | ​
​ The FHLB advance is not convertible and has a fixed rate. There were no new long-term advances entered into with the FHLB during 2022 or 2021.

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- Definition The entire disclosure for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI https://asc.fasb.org/topic&trid=2208564 + Details
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