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Securities - Schedule of Amortized Cost of Securities and Their Estimated Fair Values (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | --- | --- | --- | --- | ---
Available for sale securities: |  |  |  |  |  |
Amortized Cost | $ 298,482 |  | $ 263,519 |  |  |
Gross Unrealized Gains | 1,073 |  | 427 |  |  |
Gross Unrealized Losses | (7,231) |  | (9,442) |  |  |
Allowance for Credit Losses | 0 |  | 0 |  |  |
Fair Value | 292,324 |  | 254,504 |  |  |
Held to maturity securities: |  |  |  |  |  |
Fair Value | 4,756 |  | 5,476 |  |  |
Allowance for credit losses | (2,890) | $ (2,876) | (2,444) | $ (2,430) | $ (2,355) | $ (2,082)
Total held to maturity securities, net of ACL | 3,311 |  | 4,077 |  |  |
Mortgage-backed securities, residential |  |  |  |  |  |
Available for sale securities: |  |  |  |  |  |
Amortized Cost | 49,346 |  | 55,329 |  |  |
Gross Unrealized Gains | 9 |  | 235 |  |  |
Gross Unrealized Losses | (6,173) |  | (4,931) |  |  |
Allowance for Credit Losses | 0 |  | 0 |  |  |
Fair Value | 43,182 |  | 50,633 |  |  |
Asset-backed securities |  |  |  |  |  |
Available for sale securities: |  |  |  |  |  |
Amortized Cost | 1,243 |  | 6,389 |  |  |
Gross Unrealized Gains | 10 |  | 0 |  |  |
Gross Unrealized Losses | 0 |  | (58) |  |  |
Allowance for Credit Losses | 0 |  | 0 |  |  |
Fair Value | 1,253 |  | 6,331 |  |  |
State and municipal |  |  |  |  |  |
Available for sale securities: |  |  |  |  |  |
Amortized Cost | 5,217 |  | 13,553 |  |  |
Gross Unrealized Gains | 0 |  | 1 |  |  |
Gross Unrealized Losses | (189) |  | (116) |  |  |
Allowance for Credit Losses | 0 |  | 0 |  |  |
Fair Value | 5,028 |  | 13,438 |  |  |
CLO securities |  |  |  |  |  |
Available for sale securities: |  |  |  |  |  |
Amortized Cost | 240,162 |  | 185,068 |  |  |
Gross Unrealized Gains | 1,047 |  | 161 |  |  |
Gross Unrealized Losses | (734) |  | (4,218) |  |  |
Allowance for Credit Losses | 0 |  | 0 |  |  |
Fair Value | 240,475 |  | 181,011 |  |  |
Held to maturity securities: |  |  |  |  |  |
Amortized Cost | 6,201 |  | 6,521 |  |  |
Gross Unrealized Gains | 339 |  | 458 |  |  |
Gross Unrecognized Losses | (1,784) |  | (1,503) |  |  |
Fair Value | 4,756 |  | 5,476 |  |  |
Allowance for credit losses | (2,890) |  | (2,444) |  |  |
Total held to maturity securities, net of ACL | 3,311 |  | 4,077 |  |  |
Corporate bonds |  |  |  |  |  |
Available for sale securities: |  |  |  |  |  |
Amortized Cost | 768 |  | 1,270 |  |  |
Gross Unrealized Gains | 0 |  | 1 |  |  |
Gross Unrealized Losses | (19) |  | (8) |  |  |
Allowance for Credit Losses | 0 |  | 0 |  |  |
Fair Value | 749 |  | 1,263 |  |  |
SBA pooled securities |  |  |  |  |  |
Available for sale securities: |  |  |  |  |  |
Amortized Cost | 1,746 |  | 1,910 |  |  |
Gross Unrealized Gains | 7 |  | 29 |  |  |
Gross Unrealized Losses | (116) |  | (111) |  |  |
Allowance for Credit Losses | 0 |  | 0 |  |  |
Fair Value | $ 1,637 |  | $ 1,828 |  |  |

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