Quarterly report pursuant to Section 13 or 15(d)

Allowance for Loan and Lease Losses - Summary of Investment in Loans Disaggregated Based on Method of Evaluating Impairment (Details)

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Allowance for Loan and Lease Losses - Summary of Investment in Loans Disaggregated Based on Method of Evaluating Impairment (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Financing Receivable Allowance For Credit Losses [Line Items]    
Loans - Recorded Investment, Individually Evaluated for Impairment $ 9,970 $ 8,829
Loans - Recorded Investment, Collectively Evaluated for Impairment 2,420,624 2,379,703
Allowance for Credit Loss, Individually Evaluated for Impairment 5,642 4,079
Allowance for Credit Loss, Collectively Evaluated for Impairment 10,672 11,947
Commercial and Industrial Loans    
Financing Receivable Allowance For Credit Losses [Line Items]    
Loans - Recorded Investment, Individually Evaluated for Impairment 6,033 4,978
Loans - Recorded Investment, Collectively Evaluated for Impairment 693,863 570,008
Allowance for Credit Loss, Individually Evaluated for Impairment 4,712 3,488
Allowance for Credit Loss, Collectively Evaluated for Impairment 4,970 5,598
Real Estate | 1-4 Single Family Residential Loans    
Financing Receivable Allowance For Credit Losses [Line Items]    
Loans - Recorded Investment, Individually Evaluated for Impairment 965 1,637
Loans - Recorded Investment, Collectively Evaluated for Impairment 347,943 362,502
Allowance for Credit Loss, Individually Evaluated for Impairment 1 1
Allowance for Credit Loss, Collectively Evaluated for Impairment 83 146
Real Estate | Construction, Land and Development    
Financing Receivable Allowance For Credit Losses [Line Items]    
Loans - Recorded Investment, Individually Evaluated for Impairment 217 217
Loans - Recorded Investment, Collectively Evaluated for Impairment 344,340 415,271
Allowance for Credit Loss, Collectively Evaluated for Impairment 1,886 1,744
Real Estate | Commercial Real Estate Loans (Including Multifamily)    
Financing Receivable Allowance For Credit Losses [Line Items]    
Loans - Recorded Investment, Individually Evaluated for Impairment 2,578 1,837
Loans - Recorded Investment, Collectively Evaluated for Impairment 961,764 954,906
Allowance for Credit Loss, Individually Evaluated for Impairment 770 500
Allowance for Credit Loss, Collectively Evaluated for Impairment 3,686 4,343
Consumer Loans and Leases    
Financing Receivable Allowance For Credit Losses [Line Items]    
Loans - Recorded Investment, Individually Evaluated for Impairment 107 108
Loans - Recorded Investment, Collectively Evaluated for Impairment 9,512 11,630
Allowance for Credit Loss, Individually Evaluated for Impairment 107 90
Allowance for Credit Loss, Collectively Evaluated for Impairment 6 55
Municipal and Other Loans    
Financing Receivable Allowance For Credit Losses [Line Items]    
Loans - Recorded Investment, Individually Evaluated for Impairment 70 52
Loans - Recorded Investment, Collectively Evaluated for Impairment 63,202 65,386
Allowance for Credit Loss, Individually Evaluated for Impairment 52  
Allowance for Credit Loss, Collectively Evaluated for Impairment $ 41 $ 61