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Loans Receivable (Details) - USD ($)
3 Months Ended 12 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Loans Receivable (Details) [Line Items]        
Net deferred loan costs $ 325,000     $ 330,000
Principal amounts $ 50,000 $ 1,400,000    
Private mortgage insurance percentage 97.00%      
Borrow up percentage 90.00%      
One- to four-family rental properties percentage 80.00%      
Estimated value percentage 80.00%      
Loans term     25 years  
Loans secured percentage 90.00%      
Provision for credit losses $ 6,000      
Financing Receivable, Allowance for Credit Loss 56,000      
One- to four-family loans in process 1,200,000 766,000    
Net of a purchase credit discount   $ 88,000    
Loans [Member]        
Loans Receivable (Details) [Line Items]        
Provision for credit losses 4,000      
Unfunded Commitments [Member]        
Loans Receivable (Details) [Line Items]        
Provision for credit losses $ 2,000      
Multi-family and Nonresidential Loans [Member]        
Loans Receivable (Details) [Line Items]        
Estimated value percentage 80.00%      
Consumer Lending [Member]        
Loans Receivable (Details) [Line Items]        
Estimated value percentage 80.00%      
Home Equity Loans [Member]        
Loans Receivable (Details) [Line Items]        
Estimated value percentage 90.00%