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Intangible Assets - Schedule of Future Estimated Amortization Expense (Detail) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]    
2021 $ 26,561  
2022 26,561  
2023 26,561  
2024 22,655  
2025 17,187  
2026 and thereafter 285,354  
Intangible assets subject to amortization, Net Book Value $ 404,879 $ 313,228