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Goodwill and Other Intangibles (Tables) | 12 Months Ended
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Dec. 31, 2022
Goodwill and Other Intangible Assets [Abstract] |
Schedule of Components of Goodwill and Other Acquired Intangible Assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2022
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted
​ | ​ | Gross | ​ | Measurement | ​ | Accumulated | ​ | ​ | ​ | ​ | Net | ​ | Average
​ | ​ | Carrying | ​ | Period | ​ | Impairment | ​ | Accumulated | ​ | Carrying | ​ | Remaining Life
(Dollars in thousands) |  | Amount |  | Adjustments | ​ | Charges |  | Amortization |  | Amount | ​ | (in years)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Goodwill | ​ | $ | 65,631 | ​ | $ | (155) | ​ | $ | (1,543) | ​ | $ | (667) | ​ | $ | 63,266 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other intangible assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortizable | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Core deposit intangible | ​ | $ | 10,504 | ​ | $ | — | ​ | $ | — | ​ | $ | (4,957) | ​ | $ | 5,547 | ​ | ​ | 2.6
Total other intangible assets | ​ | $ | 10,504 | ​ | $ | — | ​ | $ | — | ​ | $ | (4,957) | ​ | $ | 5,547 | ​ | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2021
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted
​ |  | Gross |  | ​ | ​ | ​ | Accumulated | ​ | ​ | ​ |  | ​ | Net | ​ | ​ | Average
​ |  | Carrying |  | ​ | ​ | Impairment |  | ​ | Accumulated |  | ​ | Carrying | ​ | ​ | Remaining Life
(Dollars in thousands) |  | Amount |  | Additions | ​ | Charges |  | ​ | Amortization |  | ​ | Amount | ​ | ​ | (in years)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Goodwill | ​ | $ | 19,727 | ​ | $ | 45,904 | ​ | $ | (1,543) | ​ | $ | (667) | ​ | $ | 63,421 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other intangible assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortizable | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Core deposit intangible | ​ | $ | 3,954 | ​ | $ | 6,550 | ​ | $ | — | ​ | $ | (2,969) | ​ | $ | 7,535 | ​ |  | 2.9
Total other intangible assets | ​ | $ | 3,954 | ​ | $ | 6,550 | ​ | $ | — | ​ | $ | (2,969) | ​ | $ | 7,535 | ​ | ​ | ​
​
Future Amortization Expense for Amortizable Other Intangible Assets | ​
​ | ​ | ​ | ​
(Dollars in thousands) | ​ | Amortization Expense
2023 | ​ | $ | 1,682
2024 | ​ |  | 1,376
2025 | ​ |  | 1,070
2026 | ​ |  | 765
2027 | ​ | ​ | 459
Thereafter | ​ | ​ | 195
Total amortizing intangible assets | ​ | $ | 5,547

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