XML 35 R24.htm IDEA: XBRL DOCUMENT v3.21.1
Zimmer Development Agreement (Tables)
6 Months Ended
Mar. 31, 2021
Zimmer Development Agreement [Abstract]  
Schedule of deferred revenue
   2020 
Deferred Revenue     
Balance as of beginning of period – September 30, 2020  $73,434 
Revenue recognized   (42,387)
Balance as of end of period – March 31, 2021  $31,047