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Restricted Stock Units - Additional Information (Detail) - USD ($)
6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation $ 33,598 $ 44,189  
Capitalized stock based compensation $ 35,002    
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock units with extended vesting period 2,578,940   2,118,001
Restricted stock units granted 460,939    
Stock-based compensation $ 30,930 44,189  
Capitalized stock based compensation 35,002 $ 107,367  
Unrecognized compensation expense $ 76,792    
Weighted average period 7 months    
Restricted Stock Units (RSUs) [Member] | Vesting date December one two thousand sixteen [member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock units with extended vesting period 685,957    
Restricted Stock Units (RSUs) [Member] | Officer [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock units granted 460,939    
Restricted stock units granted, fair value $ 127,887    
Restricted Stock Units (RSUs) [Member] | Minimum [Member] | Officer [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock units, vesting period 17 months    
Restricted Stock Units (RSUs) [Member] | Maximum [Member] | Officer [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock units, vesting period 19 months