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Fair Value of Financial Instruments - Schedule of Cash Equivalents and Derivative Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents $ 12,818,930  
Derivative liabilities   $ 378,239
In Active Markets for Identical Assets or Liabilities (Level 1) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents $ 12,818,930