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, 2022
Dec. 31, 2021
Sep. 30, 2022
Property, Plant and Equipment [Line Items]      
Depreciation expense $ 45,000 $ 25,000  
Equipment, Furniture And Leasehold Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Deposits $ 561,000   $ 276,000