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Summary of Significant Accounting Policies - Schedule of Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Accounting Policies [Abstract]        
Net loss applicable to common stockholders - numerator for basic and diluted earnings per share $ (1,504,237) $ (1,826,744) $ (3,023,277) $ (3,315,167)
Weighted - average common shares outstanding -denominator for basic and diluted earnings per share 111,686,685 96,649,466 111,652,346 96,237,784
Basic and diluted $ (0.01) $ (0.02) $ (0.03) $ (0.03)