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Organization and Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - ASU 2016-13
$ in Thousands
Jan. 01, 2020
USD ($)
Financial Instruments – Decrease in Loan and Lease Credit Losses Reserves | Minimum  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Effect of adoption $ (800)
Financial Instruments – Decrease in Loan and Lease Credit Losses Reserves | Maximum  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Effect of adoption (1,400)
Increase to Reserves for Off-balance Sheet Exposure | Minimum  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Effect of adoption (400)
Increase to Reserves for Off-balance Sheet Exposure | Maximum  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Effect of adoption $ (800)