License Agreements - Summary of License Fees Earned (Detail) - USD ($)	3 Months Ended	6 Months Ended
May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018
License Agreements [Line Items]
Revenue	$ 8,127,852	$ 6,525,463	$ 15,622,964	$ 12,753,581
Licensee And Royalty Income Recognition [Member]
License Agreements [Line Items]
Revenue	201,828	203,159	201,828	203,159
India [Member] \| Processing and Storage Royalties [Member]
License Agreements [Line Items]
Revenue	$ 201,828	$ 203,159	$ 201,828	$ 203,159

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration