v3.7.0.1
Licensing Agreements and Research Contracts - Additional Information (Detail) - USD ($)
 1 Months Ended 12 Months Ended
May 31, 2011
Mar. 31, 2010
Mar. 31, 2009
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Licensing Agreements [Member]                
Finite-Lived Intangible Assets [Line Items]                
Amortization expense of licenses         $ 10,300 $ 9,700 $ 8,500  
Weighted average remaining amortization period for all licenses         10 years      
Annual amortization expense of licenses year 1         $ 10,300      
Annual amortization expense of licenses year 2         10,300      
Annual amortization expense of licenses year 3         10,300      
Annual amortization expense of licenses year 4         10,300      
Annual amortization expense of licenses year 5         $ 10,300      
University of Missouri [Member]                
Finite-Lived Intangible Assets [Line Items]                
Royalty fees percentage minimum   1.00% 1.00%          
Royalty fees percentage maximum   3.00% 3.00%          
Minimum annual royalty payment, start date         2017-01      
Expected expiration year of license agreement     2029          
Clemson University [Member]                
Finite-Lived Intangible Assets [Line Items]                
Minimum annual royalty payment due           $ 40,000 $ 20,000 $ 20,000
Clemson University [Member] | Licensing Agreements [Member]                
Finite-Lived Intangible Assets [Line Items]                
Royalty fees percentage minimum 1.50%              
Royalty fees percentage maximum 3.00%              
Expected expiration year of license agreement 2024-05              
Scenario Forecast [Member] | University of Missouri [Member]                
Finite-Lived Intangible Assets [Line Items]                
Annual royalty       $ 25,000