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Significant Accounting Policies - Summary of Allowance of Credit Losses (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Jan. 01, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses $ 21,336 $ 20,906 $ 20,628 $ 19,176 $ 17,951
Unfunded commitments          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses 442 442 0    
Real estate | Commercial real estate          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses 9,118 8,596 7,720 6,749 5,798
Real estate | One-to-four family residential          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses 7,484 6,913 5,682 5,375 5,390
Real estate | Construction and development          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses 1,309 1,210 1,654 1,326 1,699
Commercial and industrial          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses 2,553 3,528 4,350 4,465 3,949
Tax-exempt          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses 575 324 751 749 680
Consumer          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses $ 297 $ 335 471 $ 512 $ 435
Impact of ASC 326 Adoption          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses     278    
Impact of ASC 326 Adoption | Unfunded commitments          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses     442    
Impact of ASC 326 Adoption | Real estate | Commercial real estate          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses     876    
Impact of ASC 326 Adoption | Real estate | One-to-four family residential          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses     1,231    
Impact of ASC 326 Adoption | Real estate | Construction and development          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses     (444)    
Impact of ASC 326 Adoption | Commercial and industrial          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses     (822)    
Impact of ASC 326 Adoption | Tax-exempt          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses     (427)    
Impact of ASC 326 Adoption | Consumer          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Allowance for credit losses     $ (136)