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Loans Receivable (Details) - USD ($)
6 Months Ended 12 Months Ended
Dec. 31, 2022
Jun. 30, 2022
Jun. 30, 2021
Loans Receivable (Details) [Line Items]      
Net deferred loan costs $ 321,000 $ 290,000  
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 secured percentage 90.00%    
One- to four-family loans in process $ 805,000 489,000  
Total loans     $ 815,000
Loans classified as TDRs 1,200,000 1,400,000  
Net of a purchase credit discount $ 88,000 $ 88,000  
Troubled Debt Restructuring [Member]      
Loans Receivable (Details) [Line Items]      
Bankruptcy proceedings, percentage 16.30%    
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%