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Zimmer Development Agreement (Tables)
12 Months Ended
Sep. 30, 2021
Zimmer Development Agreement [Abstract]  
Schedule of deferred revenue
Deferred Revenue    
Balance as of  September 30, 2019  $
 
Upfront initial exclusivity payment   2,000,000 
Revenue recognized   (1,926,566)
Balance as of  September 30, 2020   73,434 
Revenue recognized   (64,812)
Balance as of September 30, 2021  $8,622