Annual report [Section 13 and 15(d), not S-K Item 405]

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

v3.25.0.1
Segment Reporting - Summary of Net Revenue, Cost of Sales, Operating Profit, Depreciation and Amortization, Interest Expense and Assets by Segment (Detail) - USD ($)
 12 Months Ended
Nov. 30, 2024
Nov. 30, 2023
Segment Reporting Information [Line Items]    
Total net revenue $ 31,986,106 $ 31,343,695
Total cost of sales 7,947,752 8,390,463
Total operating profit (loss) 3,480,284 (12,304,032)
Total depreciation and amortization 483,522 1,124,228
Total interest expense 1,864,684 1,236,794
Total assets 64,677,633 61,220,770
Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total depreciation and amortization 483,522 1,124,228
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member]    
Segment Reporting Information [Line Items]    
Total net revenue 31,551,550 30,796,091
Total cost of sales 6,889,882 7,216,877
Total operating profit (loss) 4,131,796 (7,911,698)
Total assets 59,259,451 55,471,149
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total depreciation and amortization 455,324 1,095,009
Total interest expense 1,864,684 1,236,794
PrepaCyte CB [Member]    
Segment Reporting Information [Line Items]    
Total net revenue 67,884 66,456
Total cost of sales 45,082 35,490
Total operating profit (loss) (4,976) 3,188
Total assets 138,169 148,040
PrepaCyte CB [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total depreciation and amortization 27,778 27,778
Public Cord Blood Banking [Member]    
Segment Reporting Information [Line Items]    
Total net revenue 366,672 481,148
Total cost of sales 1,012,788 1,138,096
Total operating profit (loss) (646,536) (4,395,522)
Total assets 5,280,013 5,601,581
Public Cord Blood Banking [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total depreciation and amortization $ 420 $ 1,441