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INVESTMENT SECURITIES - Schedule of Unrealized Losses for which an Allowance for Credit Loss (Details)
$ in Thousands
 12 Months Ended
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Schedule of Unrealized Losses for which an Allowance for Credit Loss [Line Items]    
Number of Securities 8 9
Fair Value $ 6,810 $ 7,638
Unrealized Losses $ (1,090) $ (1,208)
Mortgage-backed securities - residential [Member] | Obligations of U.S. government agencies [Member]    
Schedule of Unrealized Losses for which an Allowance for Credit Loss [Line Items]    
Number of Securities 1 1
Fair Value $ 82 $ 88
Unrealized Losses $ (8) $ (6)
Mortgage-backed securities - residential [Member] | Obligations of U.S. government-sponsored enterprises [Member]    
Schedule of Unrealized Losses for which an Allowance for Credit Loss [Line Items]    
Number of Securities 7 8
Fair Value $ 6,728 $ 7,550
Unrealized Losses (1,082) (1,202)
Less Than 12 Months [Member]    
Schedule of Unrealized Losses for which an Allowance for Credit Loss [Line Items]    
Fair Value
Unrealized Losses
Less Than 12 Months [Member] | Mortgage-backed securities - residential [Member] | Obligations of U.S. government agencies [Member]    
Schedule of Unrealized Losses for which an Allowance for Credit Loss [Line Items]    
Fair Value
Unrealized Losses
Less Than 12 Months [Member] | Mortgage-backed securities - residential [Member] | Obligations of U.S. government-sponsored enterprises [Member]    
Schedule of Unrealized Losses for which an Allowance for Credit Loss [Line Items]    
Fair Value
Unrealized Losses
Twelve Months Or Greater [Member]    
Schedule of Unrealized Losses for which an Allowance for Credit Loss [Line Items]    
Fair Value 6,810 7,638
Unrealized Losses (1,090) (1,208)
Twelve Months Or Greater [Member] | Mortgage-backed securities - residential [Member] | Obligations of U.S. government agencies [Member]    
Schedule of Unrealized Losses for which an Allowance for Credit Loss [Line Items]    
Fair Value 82 88
Unrealized Losses (8) (6)
Twelve Months Or Greater [Member] | Mortgage-backed securities - residential [Member] | Obligations of U.S. government-sponsored enterprises [Member]    
Schedule of Unrealized Losses for which an Allowance for Credit Loss [Line Items]    
Fair Value 6,728 7,550
Unrealized Losses $ (1,082) $ (1,202)