Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details)

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Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value $ 212,420 $ 96,937
Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 212,420 96,937
U.S. Treasuries    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value   60,371
State and Municipal Obligations    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 37,185 7,981
Residential Mortgage-backed Securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 132,142 28,585
Fair Value Measurements on Recurring Basis    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value   100,292
Fair Value Measurements on Recurring Basis | Corporate Bonds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 43,093  
Fair Value Measurements on Recurring Basis | Level 1    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value   60,371
Fair Value Measurements on Recurring Basis | Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value   36,566
Fair Value Measurements on Recurring Basis | Level 2 | Corporate Bonds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 43,093  
Fair Value Measurements on Recurring Basis | Level 3    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value   3,355
Fair Value Measurements on Recurring Basis | U.S. Treasuries    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value   60,371
Fair Value Measurements on Recurring Basis | U.S. Treasuries | Level 1    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value   60,371
Fair Value Measurements on Recurring Basis | State and Municipal Obligations    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 37,185 7,981
Fair Value Measurements on Recurring Basis | State and Municipal Obligations | Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 37,185 7,981
Fair Value Measurements on Recurring Basis | Residential Mortgage-backed Securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 132,142 28,585
Fair Value Measurements on Recurring Basis | Residential Mortgage-backed Securities | Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 132,142 28,585
Fair Value Measurements on Recurring Basis | Equity Securities at Fair Value    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 24,000  
Fair Value Measurements on Recurring Basis | Equity Securities at Fair Value | Level 1    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 24,000  
Fair Value Measurements on Recurring Basis | SBA Servicing Rights    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 2,953 3,355
Fair Value Measurements on Recurring Basis | SBA Servicing Rights | Level 3    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 2,953 $ 3,355
Fair Value Measurements on Recurring Basis | Customer Interest Rate Swaps    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 3,009  
Fair Value Measurements on Recurring Basis | Customer Interest Rate Swaps | Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value 3,009  
Fair Value Measurements on Recurring Basis | Correspondent Interest Rate Swaps    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value (3,009)  
Fair Value Measurements on Recurring Basis | Correspondent Interest Rate Swaps | Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total available for sale, Fair Value $ (3,009)