Quarterly report pursuant to Section 13 or 15(d)

Acquisition - Summary of Preliminary Allocation of Total Purchase Price (Detail)

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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