Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Information (Narrative) (Details)

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Balance Sheet Information (Narrative) (Details) - USD ($)
3 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Sep. 30, 2023
Property, Plant and Equipment [Line Items]      
Depreciation expense $ 66,000 $ 45,000  
Equipment, Furniture And Leasehold Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Deposits $ 187,000   $ 214,000