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Zimmer Development Agreement (Tables)
9 Months Ended
Jun. 30, 2021
Zimmer Development Agreement [Abstract]  
Schedule of deferred revenue
    
Deferred Revenue    
Balance as of beginning of period – September 30, 2020  $73,434 
Revenue recognized   (59,838)
Balance as of end of period – June 30, 2021  $13,596