v3.26.1
Summary of Significant Accounting Policies (Unaudited) (Details)
 12 Months Ended
Jul. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
segment
shares
Dec. 31, 2024
USD ($)
shares
Summary of Significant Accounting Policies (Unaudited)      
Common stock, per share | $ / shares $ 10    
Proceeds from issuance of common stock $ 54,594,730    
Payments of stock issuance costs $ 2,400,000    
Stock issued during period shares new issues to charitable foundation | shares 100,000    
Employee stock ownership plan (ESOP), shares contributed to ESOP | shares 444,758    
Percent of employee stock ownership plan stock over total common stock issued 8.00%    
Common stock, issued (in shares) | shares 5,559,473 5,349,039 5,559,473
Net proceeds from the offering to the bank $ 26,097,000    
Employee stock ownership plan (ESOP), loan amount 4,447,580    
Net proceeds of the offering, amount retained $ 21,400,000    
Number of reporting segments | segment   1  
Bank deposit accounts in excess of FDIC limit of $250,000 per institution   $ 25,808,000 $ 27,065,000
Deposit limit   250,000 250,000
Reserve requirement with Federal Reserve Bank   0 0
Held-to-maturity securities held   0 0
Trading securities held   0 0
Allowance for credit losses for available-for-sale securities   0 0
Accrued interest receivable on available-for-sale securities   411,000 348,000
Accrued interest receivable related to loans   1,588,000 1,619,000
Bank Owned Life Insurance   7,689,000 10,685,000
Appreciation in cash surrender value   304,000 353,000
Real estate owned   42,000 42,000
Interest and/or penalties recognized   0 0
Dilutive securities   0 0
Advertising and promotional expenses   $ 105,000 $ 131,000
Fifth District Saving Bank      
Summary of Significant Accounting Policies (Unaudited)      
Ownership percentage 100.00%    
Fifth District Saving Bank      
Summary of Significant Accounting Policies (Unaudited)      
Number of shares sold on the conversion | shares 5,459,473    
Minimum | Building and Improvements      
Summary of Significant Accounting Policies (Unaudited)      
Estimated useful lives   15 years  
Minimum | Furniture and Fixtures      
Summary of Significant Accounting Policies (Unaudited)      
Estimated useful lives   5 years  
Maximum | Building and Improvements      
Summary of Significant Accounting Policies (Unaudited)      
Estimated useful lives   40 years  
Maximum | Furniture and Fixtures      
Summary of Significant Accounting Policies (Unaudited)      
Estimated useful lives   10 years  
Commercial loans      
Summary of Significant Accounting Policies (Unaudited)      
Percentage of loan balance purchased (in percent)   100.00%  
Percentage of loan balance remitted to seller (in percent)   97.00%  
Percentage of loan balance that the seller establishes reserve deposit account (in percent)   3.00%  
Number of days of delinquency considered for replacement of delinquent loans with performing loans by seller   90 days  
Loan commitment period   10 years  
Loan amortization period   15 years  
Loan fixed rate period   5 years  
Period for loan with prime plus a margin   5 years  
Short-term interim financing period for small businesses   12 months