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)

v3.23.3
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, 2023
Aug. 31, 2022
Aug. 31, 2023
Aug. 31, 2022
Nov. 30, 2022
Segment Reporting Information [Line Items]          
Total net revenue $ 7,869,875 $ 7,680,959 $ 23,466,980 $ 22,572,707  
Total cost of sales 2,156,187 2,348,755 6,366,737 6,653,497  
Total operating profit 1,161,044 954,311 3,872,113 3,619,107  
Total depreciation and amortization 281,277 281,903 843,201 839,995  
Total interest expense 469,642 365,349 1,405,825 947,968  
Total assets 69,796,366   69,796,366   $ 64,888,054
Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 281,277 281,903 843,201 839,995  
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 7,862,949 7,522,134 23,006,164 22,159,702  
Total cost of sales 1,976,278 1,883,400 5,466,410 5,343,455  
Total operating profit 1,341,332 1,268,146 4,333,538 4,538,058  
Total assets 60,226,085   60,226,085   54,849,697
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 273,972 274,598 821,287 818,081  
Total interest expense 469,642 365,349 1,405,825 947,968  
PrepaCyte CB [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 2,543 21,000 61,920 75,600  
Total cost of sales 982 10,622 27,432 63,934  
Total operating profit (5,384) 3,433 13,654 (9,168)  
Total assets 150,869   150,869   176,546
PrepaCyte CB [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization 6,945 6,945 20,834 20,834  
Public Cord Blood Banking [Member]          
Segment Reporting Information [Line Items]          
Total net revenue 4,383 137,825 398,896 337,405  
Total cost of sales 178,927 454,733 872,895 1,246,108  
Total operating profit (174,904) (317,268) (475,079) (909,783)  
Total assets 9,419,412   9,419,412   $ 9,861,811
Public Cord Blood Banking [Member] | Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Total depreciation and amortization $ 360 $ 360 $ 1,080 $ 1,080