v3.25.4
Fair Value (Fair Value Of Assets And Liabilities Measured On Recurring Basis) (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Sep. 30, 2025
Assets:    
Investment securities, available for sale $ 454,493 $ 520,659
Mortgage loans held for sale 14,488 58,325
Derivative 0 272
Forward Commitments For Sale Of Mortgage Loans    
Assets:    
Derivative Liability 63 351
REMIC's    
Assets:    
Investment securities, available for sale 439,251 455,368
Fannie Mae Certificates    
Assets:    
Investment securities, available for sale 2,689 2,719
Quoted Prices In Active Markets For Identical Assets (Level 1)    
Assets:    
Investment securities, available for sale 0 0
Mortgage loans held for sale 0 0
Derivative 0 0
Quoted Prices In Active Markets For Identical Assets (Level 1) | Forward Commitments For Sale Of Mortgage Loans    
Assets:    
Derivative Liability 0 0
Significant Other Observable Inputs (Level 2)    
Assets:    
Investment securities, available for sale 454,493 520,659
Mortgage loans held for sale 14,488 58,325
Derivative 0 0
Significant Other Observable Inputs (Level 2) | Forward Commitments For Sale Of Mortgage Loans    
Assets:    
Derivative Liability 63 351
Significant Unobservable Inputs (Level 3)    
Assets:    
Investment securities, available for sale 0 0
Mortgage loans held for sale 0 0
Derivative 0 272
Significant Unobservable Inputs (Level 3) | Forward Commitments For Sale Of Mortgage Loans    
Assets:    
Derivative Liability 0 0
Fair Value, Measurements, Recurring    
Assets:    
Mortgage loans held for sale 11,365 22,861
Total 465,858 543,792
Total Liabilities 63 351
Fair Value, Measurements, Recurring | Forward Commitments For Sale Of Mortgage Loans    
Assets:    
Derivative Liability 63 351
Fair Value, Measurements, Recurring | Interest Rate Lock Commitments    
Assets:    
Derivative 0 272
Fair Value, Measurements, Recurring | REMIC's    
Assets:    
Investment securities, available for sale 439,251 455,368
Fair Value, Measurements, Recurring | Fannie Mae Certificates    
Assets:    
Investment securities, available for sale 2,689 2,719
Fair Value, Measurements, Recurring | Freddie Mac Securities    
Assets:    
Investment securities, available for sale 8,604 8,617
Fair Value, Measurements, Recurring | US Treasury Notes Securities    
Assets:    
Investment securities, available for sale 3,949 53,955
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets For Identical Assets (Level 1)    
Assets:    
Mortgage loans held for sale 0 0
Total 0 0
Total Liabilities 0 0
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets For Identical Assets (Level 1) | Forward Commitments For Sale Of Mortgage Loans    
Assets:    
Derivative Liability 0 0
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets For Identical Assets (Level 1) | Interest Rate Lock Commitments    
Assets:    
Derivative 0 0
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets For Identical Assets (Level 1) | REMIC's    
Assets:    
Investment securities, available for sale 0 0
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets For Identical Assets (Level 1) | Fannie Mae Certificates    
Assets:    
Investment securities, available for sale 0 0
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets For Identical Assets (Level 1) | Freddie Mac Securities    
Assets:    
Investment securities, available for sale 0 0
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets For Identical Assets (Level 1) | US Treasury Notes Securities    
Assets:    
Investment securities, available for sale 0 0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)    
Assets:    
Mortgage loans held for sale 11,365 22,861
Total 465,858 543,520
Total Liabilities 63 351
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Forward Commitments For Sale Of Mortgage Loans    
Assets:    
Derivative Liability 63 351
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Interest Rate Lock Commitments    
Assets:    
Derivative 0 0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | REMIC's    
Assets:    
Investment securities, available for sale 439,251 455,368
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Fannie Mae Certificates    
Assets:    
Investment securities, available for sale 2,689 2,719
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Freddie Mac Securities    
Assets:    
Investment securities, available for sale 8,604 8,617
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | US Treasury Notes Securities    
Assets:    
Investment securities, available for sale 3,949 53,955
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)    
Assets:    
Mortgage loans held for sale 0 0
Total 0 272
Total Liabilities 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Forward Commitments For Sale Of Mortgage Loans    
Assets:    
Derivative Liability 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Interest Rate Lock Commitments    
Assets:    
Derivative 0 272
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | REMIC's    
Assets:    
Investment securities, available for sale 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Fannie Mae Certificates    
Assets:    
Investment securities, available for sale 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Freddie Mac Securities    
Assets:    
Investment securities, available for sale 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | US Treasury Notes Securities    
Assets:    
Investment securities, available for sale $ 0 $ 0