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Fair Value of Financial Instruments and Fair Value Measurements - Financial Instruments (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Assets |  |
Investment securities available for sale, at fair value (amortized cost $431,138 and $455,294, respectively) | $ 382,953 | $ 407,382
Investment securities held to maturity | 398,852 | $ 405,576
Liabilities |  |
Derivative Liability, Statement of Financial Position [Extensible Enumeration] |  | Other liabilities
Carrying Value |  |
Assets |  |
Cash and short-term investments | 94,669 | $ 83,322
Investment securities available for sale, at fair value (amortized cost $431,138 and $455,294, respectively) | 382,953 | 407,382
Investment securities held to maturity | 447,157 | 449,031
Other investments | 16,034 | 16,868
Loans held for sale | 31,102 | 27,958
Loans, net | 1,840,361 | 1,865,099
Derivative instruments | 361 |
Liabilities |  |
Deposits | 2,522,748 | 2,544,790
Federal Home Loan Bank advances | 155,000 | 175,000
Other borrowings | 62,969 | 63,445
Derivative instruments |  | 438
Estimated Fair Value |  |
Assets |  |
Cash and short-term investments | 94,669 | 83,322
Investment securities available for sale, at fair value (amortized cost $431,138 and $455,294, respectively) | 382,953 | 407,382
Investment securities held to maturity | 398,852 | 405,576
Other investments | 16,034 | 16,868
Loans held for sale | 31,102 | 27,958
Loans, net | 1,674,467 | 1,699,870
Derivative instruments | 361 |
Liabilities |  |
Deposits | 2,516,381 | 2,538,477
Federal Home Loan Bank advances | 157,599 | 176,022
Other borrowings | 50,078 | 51,056
Derivative instruments |  | 438
Estimated Fair Value | Level 1 |  |
Assets |  |
Cash and short-term investments | 94,669 | 83,322
Investment securities available for sale, at fair value (amortized cost $431,138 and $455,294, respectively) | 0 | 0
Investment securities held to maturity | 0 | 0
Other investments | 0 | 0
Loans held for sale | 0 | 0
Loans, net | 0 | 0
Derivative instruments | 0 |
Liabilities |  |
Deposits | 0 | 0
Federal Home Loan Bank advances | 0 | 0
Other borrowings | 0 | 0
Derivative instruments |  | 0
Estimated Fair Value | Level 2 |  |
Assets |  |
Cash and short-term investments | 0 | 0
Investment securities available for sale, at fair value (amortized cost $431,138 and $455,294, respectively) | 375,808 | 396,568
Investment securities held to maturity | 398,852 | 405,576
Other investments | 16,034 | 16,868
Loans held for sale | 31,102 | 27,958
Loans, net | 0 | 0
Derivative instruments | 361 |
Liabilities |  |
Deposits | 2,516,381 | 2,538,477
Federal Home Loan Bank advances | 157,599 | 176,022
Other borrowings | 50,078 | 51,056
Derivative instruments |  | 438
Estimated Fair Value | Level 3 |  |
Assets |  |
Cash and short-term investments | 0 | 0
Investment securities available for sale, at fair value (amortized cost $431,138 and $455,294, respectively) | 7,145 | 10,814
Investment securities held to maturity | 0 | 0
Other investments | 0 | 0
Loans held for sale | 0 | 0
Loans, net | 1,674,467 | 1,699,870
Derivative instruments | 0 |
Liabilities |  |
Deposits | 0 | 0
Federal Home Loan Bank advances | 0 | 0
Other borrowings | $ 0 | 0
Derivative instruments |  | $ 0

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