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)

v3.25.4
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, 2025
Nov. 30, 2024
Segment Reporting Information [Line Items]    
Total net revenue $ 31,566,321 $ 31,986,106
Total cost of sales 7,376,648 7,947,752
Total operating profit 482,394 3,480,284
Total depreciation and amortization 751,474 483,522
Total interest expense 2,066,256 1,864,684
Total assets 61,728,514 64,677,633
Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total depreciation and amortization 751,474 483,522
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member]    
Segment Reporting Information [Line Items]    
Total net revenue 31,382,704 31,551,550
Total cost of sales 6,639,186 6,889,882
Total operating profit 5,411,691 4,131,796
Total assets 60,788,322 59,259,451
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total depreciation and amortization 734,856 455,324
Total interest expense 2,066,256 1,864,684
PrepaCyte CB [Member]    
Segment Reporting Information [Line Items]    
Total net revenue 54,104 67,884
Total cost of sales 23,280 45,082
Total operating profit 14,206 (4,976)
Total assets 135,379 138,169
PrepaCyte CB [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total depreciation and amortization 16,618 27,778
Public Cord Blood Banking [Member]    
Segment Reporting Information [Line Items]    
Total net revenue 129,513 366,672
Total cost of sales 714,182 1,012,788
Total operating profit (4,943,503) (646,536)
Total assets $ 804,813 5,280,013
Public Cord Blood Banking [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total depreciation and amortization   $ 420