v3.25.2
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 ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Investment Securities, Equity Securities with Readily Determinable Fair Values and Other Investments          
Equity Securities $ 5,483,000   $ 5,483,000   $ 5,394,000
Summary of unrealized and realized gains and losses recognized in net income on equity securities          
Net gains (losses) recognized during the period on equity securities 22,000 $ (23,000) 89,000 $ (80,000)  
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date $ 22,000 $ (23,000) $ 89,000 $ (80,000)