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Fair Value Measurements - Carrying value and estimated fair value of financial instruments (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Securities: |  |
Total fair value, available for sale | $ 144,649 | $ 169,993
Equity securities, at fair value | 2,698 | 2,792
Restricted securities, at cost | 7,630 | 5,012
Carrying Value |  |
Assets: |  |
Cash and cash equivalents | 177,227 | 99,005
Securities: |  |
Total fair value, available for sale | 144,649 | 169,993
Held-to-maturity | 92,863 | 95,505
Equity securities, at fair value | 2,698 | 2,792
Restricted securities, at cost | 7,630 | 5,012
Loans, net | 1,824,117 | 1,840,424
Interest rate swap agreements | 621 | 846
Loan servicing rights | 104 | 22
Accrued interest receivable | 5,657 | 6,110
Liabilities: |  |
Deposits | 1,936,150 | 1,906,600
Federal Reserve Bank borrowings |  | 54,000
Federal funds purchased |  | 10,000
Federal Home Loan Bank advances | 56,000 |
Subordinated debt | 24,770 | 24,708
Interest rate swap agreements | 621 | 846
Accrued interest payable | 2,304 | 4,559
Fair Value |  |
Assets: |  |
Cash and cash equivalents | 177,227 | 99,005
Securities: |  |
Total fair value, available for sale | 144,649 | 169,993
Held-to-maturity | 79,731 | 79,532
Equity securities, at fair value | 2,698 | 2,792
Restricted securities, at cost | 7,630 | 5,012
Loans, net | 1,714,937 | 1,730,205
Interest rate swap agreements | 621 | 846
Loan servicing rights | 118 | 22
Accrued interest receivable | 5,657 | 6,110
Liabilities: |  |
Deposits | 1,940,540 | 1,906,835
Federal Reserve Bank borrowings |  | 54,000
Federal funds purchased |  | 10,000
Federal Home Loan Bank advances | 56,000 |
Subordinated debt | 22,306 | 21,873
Interest rate swap agreements | 621 | 846
Accrued interest payable | 2,304 | 4,559
Fair Value, Inputs, Level 1 | Fair Value |  |
Assets: |  |
Cash and cash equivalents | 177,227 | 99,005
Securities: |  |
Equity securities, at fair value | 2,698 | 2,792
Fair Value, Inputs, Level 2 | Fair Value |  |
Securities: |  |
Total fair value, available for sale | 144,649 | 169,993
Held-to-maturity | 79,731 | 79,532
Restricted securities, at cost | 7,630 | 5,012
Interest rate swap agreements | 621 | 846
Accrued interest receivable | 5,657 | 6,110
Liabilities: |  |
Deposits | 1,940,540 | 1,906,835
Federal Reserve Bank borrowings |  | 54,000
Federal funds purchased |  | 10,000
Federal Home Loan Bank advances | 56,000 |
Interest rate swap agreements | 621 | 846
Accrued interest payable | 2,304 | 4,559
Fair Value, Inputs, Level 3 | Fair Value |  |
Securities: |  |
Loans, net | 1,714,937 | 1,730,205
Loan servicing rights | 118 | 22
Liabilities: |  |
Subordinated debt | $ 22,306 | $ 21,873

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