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Convertible Debt - Balance Of Convertible Debt (Details) - USD ($) | Dec. 31, 2019 | Mar. 01, 2019
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Debt Instrument [Line Items] |  |
Unamortized debt discount on the liability component | $ (18,600,000) |
Unamortized debt issuance cost | (2,800,000) |
6.50% Convertible Senior Notes Due 2024 |  |
Debt Instrument [Line Items] |  |
Principal amount | 78,500,000 | $ 78,500,000.0
Unamortized debt discount on the liability component | (14,082,302) |
Unamortized debt issuance cost | (1,938,206) |
Accrued interest | 1,700,833 |
Total | 64,180,325 |
August 2019 Convertible Bonds |  |
Debt Instrument [Line Items] |  |
Principal amount | 15,578,211 |
Unamortized debt discount on the liability component | (6,764,346) |
Unamortized debt issuance cost | (255,185) |
Accretion of premium associated with the bonds | 227,322 |
Accrued interest | 38,946 |
Total | 8,824,948 |
December 2019 Convertible Bonds |  |
Debt Instrument [Line Items] |  |
Principal amount | 4,067,644 |
Unamortized debt issuance cost | (50,000) |
Accretion of premium associated with the bonds | 0 |
Accrued interest | 0 |
Total | $ 4,017,644 |

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