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Fair Value Measurements - Fair Value of Assets on Recurring Basis Segregated by Level of Valuation Inputs (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt investment securities: |  |
Investment securities - available-for-sale | $ 186,985 | $ 191,726
Equity investment securities: |  |
Common stock, equity securities | 206 | 206
Other Securities: |  |
Private equity securities | 206 | 206
Mutual funds Common Stock Financial Services Industry [Member] |  |
Equity investment securities: |  |
Common stock, equity securities | 206 | 206
Other Securities: |  |
Private equity securities | 206 | 206
Level 1 [Member] | Total Fair Value [Member] |  |
Other Securities: |  |
Private equity securities | 2,126 | 1,862
Level 2 [Member] | Total Fair Value [Member] |  |
Debt investment securities: |  |
Investment securities - available-for-sale | 182,114 | 186,757
Net Asset Value [Member] | Total Fair Value [Member] |  |
Debt investment securities: |  |
Investment securities - available-for-sale | 4,665 | 4,763
Recurring Basis [Member] | Total Fair Value [Member] |  |
Other Securities: |  |
Interest rate swap derivative fair value hedges | (6,415) |
Recurring Basis [Member] | Level 1 [Member] |  |
Other Securities: |  |
Total available-for-sale securities | 206 | 206
Private equity securities | 2,126 |
Recurring Basis [Member] | Level 1 [Member] | Mutual funds Common Stock Financial Services Industry [Member] |  |
Equity investment securities: |  |
Common stock, equity securities | 206 | 206
Recurring Basis [Member] | Level 2 [Member] |  |
Debt investment securities: |  |
US Treasury, agencies and GSEs | 41,562 | 29,364
State and political subdivisions | 32,984 | 45,385
Corporate | 6,863 | 7,066
Asset backed securities | 14,838 | 15,400
Residential mortgage-backed - US agency | 16,172 | 16,400
Collateralized mortgage obligations - US agency | 9,260 | 11,708
Collateralized mortgage obligations - Private label | 60,435 | 61,434
Investment securities - available-for-sale | 182,114 | 186,757
Other Securities: |  |
Total available-for-sale securities | 182,114 | 186,757
Interest rate swap derivative fair value hedges | (6,415) | (9,717)
Interest rate swap derivative cash flow hedges | 99 | (519)
Recurring Basis [Member] | Level 1, 2 and 3 [Member] | Total Fair Value [Member] |  |
Debt investment securities: |  |
US Treasury, agencies and GSEs | 41,562 | 29,364
State and political subdivisions | 32,984 | 45,385
Corporate | 6,863 | 7,066
Asset backed securities | 14,838 | 15,400
Residential mortgage-backed - US agency | 16,172 | 16,400
Collateralized mortgage obligations - US agency | 9,260 | 11,708
Collateralized mortgage obligations - Private label | 60,435 | 61,434
Investment securities - available-for-sale | 182,114 | 186,757
Other Securities: |  |
Corporate measured at NAV |  | 4,763
Total available-for-sale securities | 186,985 | 191,726
Private equity securities |  | 1,862
Interest rate swap derivative fair value hedges |  | (9,717)
Interest rate swap derivative cash flow hedges | 99 | (519)
Recurring Basis [Member] | Level 1, 2 and 3 [Member] | Total Fair Value [Member] | Mutual funds Common Stock Financial Services Industry [Member] |  |
Equity investment securities: |  |
Common stock, equity securities | 206 | $ 206
Recurring Basis [Member] | Net Asset Value [Member] | Total Fair Value [Member] |  |
Other Securities: |  |
Corporate measured at NAV | $ 4,665 |

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