Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Significant Unobservable Inputs Used in Recurring and Non-Recurring Fair Value Measurements (Details)

v3.20.4
Fair Value Measurements - Significant Unobservable Inputs Used in Recurring and Non-Recurring Fair Value Measurements (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Other real estate owned $ 133 $ 3,653  
SBA servicing asset 2,953 3,355 $ 3,965
Level 3      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
SBA servicing asset 2,953 3,355  
Level 3 | Fair Value Measurements on Non-Recurring Basis      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Impaired loans 4,948 3,990  
Other real estate owned $ 133 $ 3,653  
Level 3 | Fair Value Measurements on Non-Recurring Basis | Weighted Average | Collateral Discounts      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Range/Weighted Average 34.10% 23.90%  
Level 3 | Fair Value Measurements on Non-Recurring Basis | Weighted Average | Collateral Discounts and Estimated Cost to Sell      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Range/Weighted Average 10.00% 10.00%  
Level 3 | Fair Value Measurements on Non-Recurring Basis | Minimum | Collateral Discounts      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Range/Weighted Average 0.00% 0.00%  
Level 3 | Fair Value Measurements on Non-Recurring Basis | Maximum | Collateral Discounts      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Range/Weighted Average 100.00% 100.00%  
Level 3 | Fair Value Measurements on Non-Recurring Basis | Third Party Appraisals      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Impaired loans $ 4,948 $ 3,990  
Other real estate owned $ 133 $ 3,653  
Level 3 | Fair Value Measurements on Recurring Basis | Weighted Average | Conditional Prepayment Rate      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Range/Weighted Average 12.50% 13.30%  
Level 3 | Fair Value Measurements on Recurring Basis | Weighted Average | Discount Rate      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Range/Weighted Average 10.00% 10.80%  
Level 3 | Fair Value Measurements on Recurring Basis | Discounted Cash Flows      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
SBA servicing asset $ 2,953 $ 3,355