Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

v3.7.0.1
Related Party Transactions - Additional Information (Detail)
 1 Months Ended 3 Months Ended 12 Months Ended
Apr. 30, 2014
USD ($)
Mar. 31, 2017
USD ($)
$ / shares
shares
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
patent
Dec. 31, 2010
USD ($)
Dec. 31, 2016
shares
Related Party Transaction [Line Items]            
Warrants outstanding (in shares) | shares   6,608,000       7,033,000
Shares granted (in shares) | shares   468,000        
Consulting agreement period         3 years  
Equity Dynamics, Inc.            
Related Party Transaction [Line Items]            
Agreement with related party, fee $ 10,000          
Agreement with related party, consulting fee   $ 30,000 $ 30,000      
Due to related party   $ 40,000        
Dr. Chaganti            
Related Party Transaction [Line Items]            
Shares granted (in shares) | shares   200,000        
Consulting and advisory services fee   $ 5,000        
Common stock, shares purchased price per share (usd per share) | $ / shares   $ 15.89        
Award vesting period   4 years        
Agreement with related party, one-time payment required         $ 50,000  
Agreement with related party, percentage of net revenues required to be paid         1.00%  
Number of patents were issued | patent       1    
Patent expenses       $ 50,000    
Payment for revenue received from license sales     50,000      
Consulting and Advisory Agreement            
Related Party Transaction [Line Items]            
Non-cash stock-based compensation expense   $ 25,625 $ 16,125