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Commitments and Contingencies - Future minimum rental payments under the Company's noncancelable operating leases (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Leases    
Rent expense $ 100,000 $ 100,000
Weighted average remaining term (in years) 2 years 10 months 17 days  
Future minimum rental payments    
2020 $ 210,255  
2021 282,176  
2022 267,425  
2023 53,902  
Total 813,758  
Present value adjustment (68,283)  
Lease liability at March 31, 2020 $ 745,475