Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting - Additional Information (Detail)

v3.19.1
Segment Reporting - Additional Information (Detail)
3 Months Ended
Feb. 28, 2019
Segments
Umbilical Cord Blood and Cord Tissue Stem Cell Service and PrepaCyte-CB [Member]  
Segment Reporting Information [Line Items]  
Number of reportable segments 3