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Commitments and Contingencies - Minimum Facility Lease Payments Before Common Area Maintenance Charges (Details)
Dec. 31, 2018
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2019 $ 525,745
2020 528,225
2021 53,907
2022 10,768
2023 10,768
2024 and beyond 43,073
Total minimum lease payments $ 1,172,486