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Subsequent Events - Additional Information (Detail) - USD ($)
 1 Months Ended 3 Months Ended
May. 06, 2016
Apr. 30, 2016
Mar. 31, 2016
Mar. 31, 2016
May. 05, 2016
Dec. 31, 2015
Subsequent Event [Line Items]            
Proceeds from issuance of stock units       $ 7,102,225    
Common stock, shares authorized [1]     200,000,000 200,000,000   200,000,000
Over-Allotment-Option [Member]            
Subsequent Event [Line Items]            
Number of stock units issued     333,338      
Number of shares called by warrants     416,672 416,672    
Underwriting option exercise period     45 days      
Subsequent Events [Member]            
Subsequent Event [Line Items]            
Description of reverse stock split One-for-twelve split of the Company’s issued and outstanding common stock          
Common stock, shares authorized 200,000,000       225,000,000  
Subsequent Events [Member] | Over-Allotment-Option [Member]            
Subsequent Event [Line Items]            
Number of stock units issued   41,667        
Number of stock units issued, price per share   $ 3.60        
Proceeds from issuance of stock units   $ 150,000        
[1] * Adjusted for the 1-for-12 reverse stock split as discussed in Note 1.