v3.26.1
Summary of Significant Accounting Policies - Additional Information (Details)
12 Months Ended
Oct. 19, 2023
USD ($)
$ / shares
shares
Mar. 31, 2026
USD ($)
Segment
Mar. 31, 2025
USD ($)
Summary of Significant Accounting Policies [Line Items]      
Accrued interest receivable on available-for-sale securities   $ 222,000 $ 223,000
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]   Interest Receivable Interest Receivable
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]   true  
Accounting Standards Update [Extensible Enumeration]   us-gaap:AccountingStandardsUpdate202309Member  
Change in Accounting Principle, Accounting Standards Update, Adoption Date   Apr. 01, 2025  
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]   true  
Trading debt securities   $ 0 $ 0
Number of reportable segment | Segment   1  
Number of operating segment | Segment   1  
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description   The Company's revenue is primarily derived from the business of banking. The Company's financial performance is monitored on consolidated basis by Mr. Dannel Garness, President/CEO, who is considered to be the Company's Chief Operating Decision Maker ("CODM").  
Segment Reporting, Expense Information Used by CODM, Description   Financial performance is reported to the CODM monthly, and the primary measure of performance is consolidated net income. The allocation of resources throughout the Company is determined annually based upon consolidated net income performance. The presentation of financial performance to the CODM is consistent with amounts and financial statement line items shown in the Company's consolidated balance sheets and consolidated statements of operations.  
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]   President and Chief Executive Officer [Member]  
Stock Offering      
Summary of Significant Accounting Policies [Line Items]      
Stock Issued During Period, Shares, New Issues | shares 4,130,815    
Shares issued, price per share | $ / shares $ 10    
Common stock issuance $ 41,300,000    
Minimum      
Summary of Significant Accounting Policies [Line Items]      
Estimated useful lives   3 years  
Consumer portfolio adjusted amortized period   3 years  
Consumer portfolio amortized terms   3 years  
Maximum      
Summary of Significant Accounting Policies [Line Items]      
Estimated useful lives   39 years  
Consumer portfolio adjusted amortized period   5 years  
Consumer portfolio amortized terms   5 years