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Segment Reporting - Summary of Net Revenue, Cost of Sales, Depreciation and Amortization, Operating Profit, Interest Expense, Income Tax (Expense) Benefit and Assets by Segment (Detail) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Aug. 31, 2018 | Aug. 31, 2017 | Aug. 31, 2018 | Aug. 31, 2017 | Nov. 30, 2017
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue | $ 7,871,222 | $ 6,895,941 | $ 20,624,803 | $ 18,909,316 |
Total cost of sales | 2,486,180 | 1,977,475 | 5,864,826 | 5,085,538 |
Total depreciation and amortization | 52,072 | 33,359 | 124,865 | 96,925 |
Total operating income | 920,122 | 1,452,233 | 3,056,995 | 3,760,609 |
Total interest expense | 410,366 | 314,890 | 995,437 | 937,248 |
Total income tax (expense) benefit | (303,072) | (490,558) | (3,821,660) | (1,128,012) |
Total assets | 42,650,360 |  | 42,650,360 |  | $ 23,909,997
Umbilical Cord Blood and Cord Tissue Stem Cell Service [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue | 7,776,339 | 6,780,565 | 20,475,020 | 18,567,285 |
Total cost of sales | 2,149,778 | 1,771,403 | 5,431,359 | 4,681,276 |
Total depreciation and amortization | 43,008 | 24,295 | 97,674 | 69,734 |
Total operating income | 1,170,704 | 1,552,168 | 3,521,625 | 3,850,206 |
Total interest expense | 410,366 | 314,890 | 995,437 | 937,248 |
Total income tax (expense) benefit | (303,072) | (490,558) | (3,821,660) | (1,128,012) |
Total assets | 26,300,294 |  | 26,300,294 |  | 23,360,715
PrepaCyte CB [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue | 29,308 | 115,376 | 84,208 | 342,031 |
Total cost of sales | 27,740 | 206,072 | 124,805 | 404,262 |
Total depreciation and amortization | 9,064 | 9,064 | 27,191 | 27,191 |
Total operating income | (7,496) | $ (99,935) | (67,788) | $ (89,597) |
Total assets | 469,998 |  | 469,998 |  | $ 549,282
Public Cord Blood Banking [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue | 65,575 |  | 65,575 |  |
Total cost of sales | 308,662 |  | 308,662 |  |
Total operating income | (243,086) |  | (243,087) |  |
Total assets | $ 15,880,068 |  | $ 15,880,068 |  |

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