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Accrued Liabilities (Tables)
6 Months Ended
Mar. 31, 2024
Payables and Accruals [Abstract]  
Schedule of accrued liabilities
          
   March 31,  September 30,
   2024  2023
Accrued clinical site and patient visits costs  $1,209   $2,006 
Accrued compensation and benefits   630    1,360 
Fixed contract accruals       38 
Milestone based contract accruals   1,545    1,267 
All other accrued liabilities   1,531    2,624 
Total accrued liabilities  $4,915   $7,295