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Leases - Future Minimum Lease Payments Required Under Office Lease (Detail) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Operating Lease Liabilities Payments Due [Abstract]    
2021 $ 521,100  
2022 528,750  
2023 24,513  
Total lease payments 1,074,363  
Less: Interest (28,092)  
Present value of lease liabilities $ 1,046,271 $ 1,211,583