LONG-TERM DEBT, NET - Letter success fee (Details) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
LONG-TERM DEBT, NET
Principal amount	$ 15,000,000
Less unamortized debt acquisition costs	(51,145)
Plus accrued final fee	210,937
Subtotal	15,159,792
Less Current maturities	(9,166,667)	$ (1,666,666)
Long-term debt net of current maturities	$ 5,993,125	$ 13,385,522

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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 issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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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 current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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