Annual report pursuant to Section 13 and 15(d)

Subsequent Events

Subsequent Events
12 Months Ended
Dec. 31, 2020
Subsequent Events [Abstract]  
Subsequent Events Subsequent EventsOn February 22, 2021, the Company entered into the Seventh Amendment to the Licenses and Services Agreement with Community Tissue Services (the "CTS Agreement"). The amendment extends the term of the agreement until December 31, 2023.