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Investment Securities - Additional information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) item loan | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) item
Marketable Securities [Line Items] |  |  |  |  |
Transferred investment securities, carrying value |  |  |  |  | $ 99,000
Transferred investment securities, unrealized gain |  |  |  |  | 593
Proceeds from sales of available-for-sale securities | $ 0 | $ 0 | $ 0 | $ 0 |
Gross gains of available-for-sale debt securities | 0 |  | 0 | 10 |
Pledged securities, market value | 91,400 |  | 91,400 |  | 78,600
Pledged securities, amortized cost | 105,800 |  | $ 105,800 |  | $ 78,800
Estimated weighted average remaining life |  |  | 4 years 7 months 6 days |  | 4 years 6 months
Equity securities with readily determinable fair values | 1,913 |  | $ 1,913 |  | $ 1,869
Non-interest income |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |
Loss on investment | $ (107) | $ (14) | $ (498) |  |
Gain on investments |  |  |  | $ 85 |
U.S Treasuries |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |
Number of positions | item |  |  | 31 |  | 15
U.S. government and federal agencies |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |
Number of positions | item |  |  | 50 |  | 40
Collateralized mortgage obligations |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |
Number of positions | item |  |  | 53 |  | 35
Corporate bonds |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |
Number of positions | loan |  |  | 3 |  |
Municipal Securities |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |
Number of positions | item |  |  | 14 |  | 8
Mortgage-backed |  |  |  |  |
Marketable Securities [Line Items] |  |  |  |  |
Number of positions | item |  |  | 218 |  | 75

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