Annual report pursuant to Section 13 and 15(d)

Basis of Presentation - Additional Information (Detail)

v3.3.1.900
Basis of Presentation - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]                        
Revenues generated by company                 $ 1,175,841 $ 939,926    
Net loss $ 2,219,409 $ 1,863,676 $ 6,335,471 $ 1,292,777 $ 1,223,572 $ 1,029,544 $ 1,895,519 $ 1,640,884 11,711,333 5,789,519    
Cash used in operations                 5,104,385 5,559,130    
Accumulated deficit $ (87,655,968)       $ (75,944,635)       $ (87,655,968) $ (75,944,635)    
Gross proceeds from issuance of common stock                     $ 14,900,000 $ 13,000,000