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Stockholders' Equity - Summary of Restricted Stock Awards Activity (Details) - Restricted Stock Award [Member] - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]    
Number of Shares, Non-vested, Balance 4,378,615 4,378,615
Share-based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options, Nonvested, Fair Value [Abstract]    
Fair Value, Non-vested, Balance $ 2,060,000 $ 2,060,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]    
Weighted Average Grant Date Fair Value, Non-vested, Balance $ 0.47 $ 0.47