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Acquisition - Summary of Preliminary Allocation of Total Purchase Price (Detail) - USD ($) | Aug. 31, 2018 | Jun. 11, 2018 | Nov. 30, 2017
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Goodwill | $ 2,007,976 |  | $ 0
Blood Bank Inc and Tianhe Stem Cell Biotechnologies Inc [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Accounts receivable |  | $ 121,454 |
Inventory |  | 16,037,957 |
Prepaid expenses |  | 68,867 |
Property and equipment |  | 568,407 |
Other asset-Tiahne capital stock |  | 308,000 |
Total identifiable net assets acquired |  | 18,095,685 |
Less: Deferred revenue |  | (1,405,406) |
Goodwill |  | 2,007,976 |
Total |  | 18,698,255 |
Blood Bank Inc and Tianhe Stem Cell Biotechnologies Inc [Member] | Brand [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Intangible assets |  | 31,000 |
Blood Bank Inc and Tianhe Stem Cell Biotechnologies Inc [Member] | Customer Relationships [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Intangible assets |  | $ 960,000 |

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