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Loans Receivable - Related Party Loans (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Loans and Leases Receivable, Related Parties [Roll Forward]      
Balance outstanding at beginning of year $ 7,694 $ 8,144 $ 8,367
Principal additions 0 199 0
Principal reductions (572) (649) (223)
Balance outstanding at end of year $ 7,122 $ 7,694 $ 8,144