Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of disaggregation of revenue (Details)

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Summary of Significant Accounting Policies - Schedule of disaggregation of revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Disaggregation of Revenue [Line Items]    
Total operating revenues $ 46,643 $ 39,846
Revenue recognized at a point-in-time    
Disaggregation of Revenue [Line Items]    
Total operating revenues 42,233 36,911
Revenue recognized over time    
Disaggregation of Revenue [Line Items]    
Total operating revenues $ 4,410 $ 2,935