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BORROWED FUNDS (Tables) | 12 Months Ended
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Dec. 31, 2020
Debt Disclosure [Abstract] |
Schedule of Borrowed Funds | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020 | ​ | December 31, 2019 |
​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​ | ​ | Weighted | ​
(dollars in thousands) |  | Carrying Value |  | Average Rate | ​ | Carrying Value |  | Average Rate |
Short-term borrowings | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  |
Advances from the FHLB | ​ | $ | 65,676 |  | 1.19 | % | ​ | $ | 303,286 |  | 1.83 | %
Other borrowings | ​ |  | 27,779 |  | 0.15 | ​ | ​ |  | 44,832 |  | 0.99 | ​
Total short-term borrowings | ​ |  | 93,455 |  | 0.44 | ​ | ​ |  | 348,118 |  | 1.73 | ​
Long-term borrowings | ​ |  |  |  |  | ​ | ​ |  |  |  |  | ​
Advances from the FHLB | ​ |  | 182,607 |  | 1.73 | ​ | ​ |  | 123,278 |  | 1.93 | ​
Subordinated borrowings | ​ |  | 59,961 |  | 4.34 | ​ | ​ |  | 59,920 |  | 5.53 | ​
Total long-term borrowings | ​ |  | 242,568 |  | 2.37 | ​ | ​ |  | 183,198 |  | 2.87 | ​
Total | ​ | $ | 336,023 |  | 1.41 | % | ​ | $ | 531,316 |  | 2.11 | %
Summary of Maturities of FHLB Advances | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020 |
​ |  | ​ | ​ |  | Weighted Average |
(in thousands, except rates) | ​ | Amount | ​ | Rate |
2021 | ​ | $ | 65,676 |  | 1.19 | %
2022 | ​ |  | 75,000 |  | 1.87 | ​
2023 | ​ |  | 80,000 |  | 1.77 | ​
2024 | ​ |  | 7,300 |  | 1.16 | ​
2025 | ​ |  | 20,000 |  | 1.21 | ​
2026 and thereafter | ​ |  | 307 |  | 4.12 | ​
Total FHLB advances | ​ | $ | 248,283 |  | 1.59 | %

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- Definition Tabular disclosure of the contractual maturities and weighted average interest rates on borrowings or advances from Federal Home Loan Bank. + References No definition available. + Details
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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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