Quarterly report [Sections 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)

v3.25.2
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 6 Months Ended
May 31, 2025
May 31, 2024
May 31, 2025
May 31, 2024
Nov. 30, 2024
Segment Reporting Information [Line Items]          
Total net revenue $ 7,928,843 $ 8,042,811 $ 15,897,723 $ 15,895,046  
Total cost of sales 1,856,539 2,024,750 3,841,127 4,185,218  
Total operating profit 1,492,634 1,391,518 2,548,645 2,212,741  
Total depreciation and amortization 190,102 59,798 381,955 92,984  
Total interest expense 551,126 329,273 1,046,088 585,732  
Total assets 64,437,909   64,437,909   $ 64,677,633
Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 190,102 59,798 381,955 92,984  
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 7,871,719 7,965,500 15,737,607 15,771,022  
Total cost of sales 1,652,108 1,830,453 3,353,743 3,715,019  
Total operating profit 1,646,885 1,515,506 2,889,802 2,573,225  
Total assets 59,213,566   59,213,566   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 183,158 52,796 368,066 78,675  
Total interest expense 551,126 329,273 1,046,088 585,732  
PrepaCyte CB [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 14,436 35,834 35,349 38,834  
Total cost of sales 4,283 10,380 11,242 35,863  
Total operating profit 3,209 18,510 10,218 (10,918)  
Total assets 60,893   60,893   138,169
PrepaCyte CB [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 6,944 6,944 13,889 13,889  
Public Cord Blood Banking [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 42,688 41,477 124,767 85,190  
Total cost of sales 200,148 183,917 476,142 434,336  
Total operating profit (157,460) (142,498) (351,375) (349,566)  
Total assets $ 5,163,450   $ 5,163,450   $ 5,280,013
Public Cord Blood Banking [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization   $ 58   $ 420