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Investment Securities, Equity Securities with Readily Determinable Fair Values and Other Investments (Unrealized and realized gains and losses recognized in net income on equity securities ) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Investment Securities, Equity Securities with Readily Determinable Fair Values and Other Investments |  |  |
Equity Securities | $ 5,417,000 | $ 5,358,000 |
Summary of unrealized and realized gains and losses recognized in net income on equity securities |  |  |
Net losses recognized during the period on equity securities | 59,000 | (721,000) | $ (123,000)
Unrealized gain on equity securities with readily determinable fair values | $ 59,000 | $ (721,000) | $ (123,000)

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