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Convertible Debt - Balance Of Convertible Debt (Details) - USD ($)	Dec. 31, 2019	Mar. 01, 2019
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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