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)

v3.26.1
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, 2026
May 31, 2025
May 31, 2026
May 31, 2025
Nov. 30, 2025
Segment Reporting Information [Line Items]          
Total net revenue $ 7,776,113 $ 7,928,843 $ 15,459,230 $ 15,897,723  
Total cost of sales 1,676,663 1,856,539 3,333,151 3,841,127  
Total operating profit 1,197,341 1,492,634 1,962,475 2,548,645  
Total depreciation and amortization 184,329 190,102 368,216 381,955  
Total interest expense 441,917 551,126 904,626 1,046,088  
Total assets 60,706,430   60,706,430   $ 61,728,514
Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 184,329 190,102 368,216 381,955  
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 7,715,446 7,871,719 15,358,559 15,737,607  
Total cost of sales 1,554,459 1,652,108 3,098,460 3,353,743  
Total operating profit 1,259,127 1,646,885 2,096,992 2,889,802  
Total assets 59,799,263   59,799,263   60,788,322
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 184,080 183,158 367,719 368,066  
Total interest expense 441,917 551,126 904,626 1,046,088  
PrepaCyte CB [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 14,182 14,436 52,776 35,349  
Total cost of sales 5,783 4,283 17,970 11,242  
Total operating profit 8,150 3,209 34,309 10,218  
Total assets 122,149   122,149   135,379
PrepaCyte CB [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 249 6,944 497 13,889  
Public Cord Blood Banking [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 46,485 42,688 47,895 124,767  
Total cost of sales 116,421 200,148 216,721 476,142  
Total operating profit (69,936) $ (157,460) (168,826) $ (351,375)  
Total assets $ 785,018   $ 785,018   $ 804,813