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Summary of Significant Accounting Policies Text Tags (Details) - USD ($)
6 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Mar. 31, 2003
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2023
Mar. 31, 2023
Accounting Policies [Abstract]              
Proceeds from Issuance of Long-term Debt $ 1,814,000 $ 5,527,000 $ 13,000,000        
Proceeds from (Payments for) Other Financing Activities     $ 400,000        
Financing Receivable, Allowance for Credit Loss [Line Items]              
Retained Earnings (Accumulated Deficit) (55,874,000)       $ (51,549,000)    
Allowance for Credit Loss, Excluding Accrued Interest 6,242,000 6,007,000   $ 5,955,000 $ 5,871,000 $ 5,858,000 $ 5,229,000
Proceeds from Sale of Held-to-Maturity Securities $ 0 0          
Cumulative Effect, Period of Adoption, Adjustment [Member]              
Financing Receivable, Allowance for Credit Loss [Line Items]              
Allowance for Credit Loss, Excluding Accrued Interest   $ 668,000