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Securities - Schedule of Net Gains and Losses on Equity Investments Recognized in Earnings and Portion of Unrealized Gains and Losses for Period that Relates to Equity Investments (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]      
Less: Net gains realized on the sale of equity securities during the period   $ 6  
Unrealized gains (losses) recognized in equity securities held at December 31 $ 186 (51)  
Net gains (losses) recognized on equity securities during the year $ 186 $ (57) $ 121