v3.26.1
Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Branch
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Segment
Branch
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Number of branch offices | Branch 21   21    
Advertising and marketing expenses $ 737,000 $ 503,000 $ 1,376,000 $ 912,000  
Percentage of assets acquired and liabilities assumed at their acquisition date fair values 1   1    
Number of reportable segment | Segment     1    
Segment Reporting, Expense Information Used by CODM, Type [Extensible Enumeration]     us-gaap:ExecutiveCommitteeMember    
Segment Reporting, Expense Information Used by CODM, Description     The CODM regularly assesses performance of the aggregated single operating and reporting segment and decides how to allocate resources based on net income calculated on the same basis as is net income reported in the Company’s consolidated statements of income and other comprehensive income. The CODM is also regularly provided with expense information at a level consistent with that disclosed in the Company’s consolidated statements of income and other comprehensive income.The Company’s most significant reported source of income and expense are interest income and interest expense (see the accompanying consolidated statements of income). The remaining significant segment income and expenses are described in the consolidated statements of income.    
Servicing loans previously sold $ 17,400,000   $ 17,400,000   $ 13,400,000
ASU 2025-08          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Change in accounting principle, ASU, Adoption date Jan. 01, 2026   Jan. 01, 2026    
Change in accounting principle, ASU, Adopted [true false] true   true    
ASU 2023-09          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Change in accounting principle, ASU, Adopted [true false] true   true