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Share - based Compensation - Additional Information (Detail) - Deferred Bonus and Profits Sharing Plan By Title Of Individual [Domain] - USD ($)
6 Months Ended
Jun. 30, 2015
Mar. 31, 2014
Dec. 31, 2013
Share-Based Compensation [Line Items]      
Other general and administrative expense $ 800,826    
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period 989,970    
Share-based Compensation, Expense $ 36,838    
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period 600,000    
Fair Value Assumptions, Expected Term 2 months 1 day    
Stock Option      
Share-Based Compensation [Line Items]      
Granted during the period $ 0.27    
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period 3,300,000    
Dividend yield 0.00%    
Risk-free interest rate 1.50%    
Fair Value Assumptions, Expected Term 5 years    
Maximum | Stock Option      
Share-Based Compensation [Line Items]      
Common Stock Capital Shares Reserved For Future Issuance 7,000,000    
Minimum | Stock Option      
Share-Based Compensation [Line Items]      
Common Stock Capital Shares Reserved For Future Issuance   2,000,000 2,000,000