Long-Term Debt - Type (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term Debt, Total	$ 39,020,000	$ 8,312,079
Less current portion	19,620,000	0
Long-term debt	19,400,000	8,312,079
Convertible Notes
Debt Instrument [Line Items]
Long-term debt, gross	39,020,000	0
Marathon Tranche I Loan
Debt Instrument [Line Items]
Long-term debt, gross	0	10,000,000
Marathon Credit Agreement unamortized debt discount and issuance costs	0	(1,687,921)
Long-term Debt, Total	$ 0	$ 8,312,079

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt classified as other, payable within one year or the operating cycle, if longer.

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