Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

v3.6.0.2
Related Party Transactions - Additional Information (Detail) - USD ($)
 1 Months Ended 12 Months Ended
May 10, 2016
Jun. 30, 2016
May 31, 2016
Nov. 30, 2016
Jan. 19, 2016
Private Equity Offering          
Related Party Transaction [Line Items]          
Proceeds from private equity offering   $ 729,500 $ 37,600,000    
Shares of common stock sold at private equity offering   729,500 48,659,338    
Warrants to purchase common shares, shares       774,097  
Exercise price of warrants, per share   $ 1.00      
Directors | Consulting Agreement          
Related Party Transaction [Line Items]          
Compensation payable per month         $ 20,000
Jordan G. Naydenov | Private Equity Offering          
Related Party Transaction [Line Items]          
Proceeds from private equity offering $ 1,000,000        
Shares of common stock sold at private equity offering 1,000,000        
Warrants to purchase common shares, shares 250,000        
Exercise price of warrants, per share $ 1.35