Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting - Summary of Net Revenue, Cost of Sales, Depreciation and Amortization, Operating Profit, and Interest Expense and Assets by Segment (Detail)

v3.22.2.2
Segment Reporting - Summary of Net Revenue, Cost of Sales, Depreciation and Amortization, Operating Profit, and Interest Expense and Assets by Segment (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2022
Aug. 31, 2021
Nov. 30, 2021
Segment Reporting Information [Line Items]          
Total net revenue $ 7,680,959 $ 7,503,652 $ 22,572,707 $ 21,569,464  
Total cost of sales 2,348,755 2,458,938 6,653,497 6,693,806  
Total operating profit 954,311 1,596,338 3,619,107 4,826,667  
Total depreciation and amortization 281,903 269,482 839,995 558,167  
Total interest expense 365,349 335,870 947,968 957,479  
Total assets 66,765,293   66,765,293   $ 60,662,076
Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 281,903 269,482 839,995 558,167  
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 7,522,134 7,326,516 22,159,702 21,224,033  
Total cost of sales 1,883,400 1,943,419 5,343,455 5,453,203  
Total operating profit 1,268,146 1,941,976 4,538,058 5,743,184  
Total interest expense 365,349 335,870 947,968 957,479  
Total assets 56,548,260   56,548,260   50,170,887
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 274,598 262,229 818,081 536,823  
PrepaCyte CB [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 21,000 18,200 75,600 56,200  
Total cost of sales 10,622 53,498 63,934 129,581  
Total operating profit 3,433 (42,193) (9,168) (94,065)  
Total assets 238,636   238,636   250,591
PrepaCyte CB [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 6,945 6,894 20,834 20,683  
Public Cord Blood Banking [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 137,825 158,936 337,405 289,231  
Total cost of sales 454,733 462,021 1,246,108 1,111,022  
Total operating profit (317,268) (303,445) (909,783) (822,452)  
Total assets 9,978,397   9,978,397   $ 10,240,598
Public Cord Blood Banking [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization $ 360 $ 359 $ 1,080 $ 661