Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation - Additional Information (Detail)

v2.4.0.8
Basis of Presentation - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Dec. 31, 2012
Organization Consolidation And Presentation Of Financial Statements [Abstract]            
Revenues generated by company $ 303,752 $ 167,668 $ 518,412 $ 344,075    
Net loss (1,895,519) (2,074,035) (3,536,403) (3,663,995)    
Cash used in operations     (3,280,502) (3,581,139)    
Accumulated deficit (73,691,519)   (73,691,519)   (70,155,116)  
Gross proceeds from issuance of common stock through private placement       $ 30,000 $ 14,900,000 $ 13,000,000