Quarterly report pursuant to Section 13 or 15(d)

License Agreements - Additional Information (Detail)

v3.20.1
License Agreements - Additional Information (Detail)
 3 Months Ended
Feb. 29, 2020
USD ($)
Agreement
Feb. 28, 2019
USD ($)
License Agreements [Line Items]    
Types of agreements | Agreement 2  
Revenue $ 7,620,774 $ 7,495,112
Processing and Storage Royalties [Member]    
License Agreements [Line Items]    
Revenue 7,406,288 7,335,027
LifeCell License and Agreement [Member]    
License Agreements [Line Items]    
Royalty income since inception of license and royalty agreement 9,300,000  
Royalty collected since inception of license and royalty agreement 8,500,000  
LifeCell License and Agreement [Member] | License Fee [Member]    
License Agreements [Line Items]    
Revenue 0  
LifeCell License and Agreement [Member] | Processing and Storage Royalties [Member]    
License Agreements [Line Items]    
Revenue   $ 0
LifeCell License and Agreement [Member] | Accounts Receivable [Member]    
License Agreements [Line Items]    
Royalties receivable 800,000  
LifeCell License and Agreement [Member] | Maximum [Member]    
License Agreements [Line Items]    
Royalties receivable 10,000,000  
Royalties receivable annually $ 1,000,000