Annual report pursuant to Section 13 and 15(d)

License Agreements - Additional Information (Detail)

v3.10.0.1
License Agreements - Additional Information (Detail)
 12 Months Ended
Nov. 30, 2018
USD ($)
Agreement
Mar. 31, 2018
USD ($)
Mar. 31, 2017
USD ($)
License Agreements [Line Items]      
Types of agreements | Agreement 2    
LifeCell License and Agreement [Member]      
License Agreements [Line Items]      
Royalty income since inception of license and royalty agreement $ 7,000,000    
Royalty collected since inception of license and royalty agreement 6,500,000    
LifeCell License and Agreement [Member] | Accounts Receivable [Member]      
License Agreements [Line Items]      
Royalties receivable 500,000    
LifeCell License and Agreement [Member] | Maximum [Member]      
License Agreements [Line Items]      
Royalties receivable $ 1,000,000 $ 1,000,000 $ 1,000,000