The amount of threshold price under the accounts receivable purchase agreement.

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The amount of additional royalty financings committed.

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The amount of carrying value of convertible notes.

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The amount of future royalty owed, treated as debt.

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The percentage of increase in royalty repayment.

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The minimum volume weighted average price of stock.

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Percentage of net sales of trademark.

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Percentage of royalties collected from licenses.

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Percentage of worldwide revenues related to upfront licensing fees and milestone payments from licensees and/or distributors, but specifically excluding licensing fees and/or milestone payments that are reimbursements of clinical trial expenses.

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Royalty discount rate.

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The carrying value of royalty interest debt instrument.

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The aggregate purchase price of royalty for the entity.

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Number of stock issued during the period in exchange of royalty interest.

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Face (par) amount of debt instrument at time of issuance.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The increase (decrease) during the reporting period in the obligations due for compensation payments related to the use of copyrights, patents, trade names, licenses, technology. Royalty payments are also paid by the lease holders for oil, gas, and mineral extraction.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Debt - Sale of Future Royalty Interest (Details) - USD ($)								1 Months Ended		12 Months Ended
	Apr. 13, 2021	Mar. 08, 2021	Dec. 22, 2020	Dec. 10, 2020	Nov. 13, 2020	Oct. 08, 2020	Aug. 10, 2020	Nov. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Jan. 13, 2021	Nov. 01, 2020	Oct. 31, 2020	Jul. 10, 2020	Oct. 31, 2019
Iliad
Debt Instrument [Line Items]
Royalty Expense	$ 3,000,000.0
Issuance of common stock (In shares)	588,235
Tempesta Note
Debt Instrument [Line Items]
Principal amount																$ 550,000
Carrying value of notes										$ 350,000	$ 450,000
Streeterville Note
Debt Instrument [Line Items]
Principal amount												$ 6,200,000
Aggregate purchase price												$ 6,000,000.0
March 2020 Purchase Agreement
Debt Instrument [Line Items]
Royalty interest									$ 500,000
Notes payable									150,000
Principal amount of debt									500,000
Payments for Royalties									283,000
Royalty payments due				$ 0
Aggregate purchase price									$ 350,000
Percentage of net sales										10.00%
Percentage of worldwide revenues										10.00%
Royalty discount rate									105.00%
Increase in Royalty Repayment, Percent															10.00%
Shares issued to Iliad in exchange of Royalty Interest (in shares)								1,314,974
Royalty Instrument, Debt Instrument Carrying Value											0
March 2020 Purchase Agreement \| Beginning on September 4, 2020
Debt Instrument [Line Items]
Minimum monthly royalty repayment amount										$ 25,000
March 2020 Purchase Agreement \| Beginning on March 2021
Debt Instrument [Line Items]
Minimum monthly royalty repayment amount										44,000
October 2020 Purchase Agreement
Debt Instrument [Line Items]
Royalty interest						$ 12,000,000.0
Payments for Royalties						12,000,000.0
Aggregate purchase price						$ 6,000,000.0
Percentage of net sales						10.00%
Percentage of worldwide revenues						10.00%
Minimum Volume Weighted Average Price													$ 0.9105	$ 0.9105
Increase In Royalty Repayment Amount						$ 6,000,000.0
Additional Royalty Financings Committed					$ 6,000,000.0
Carrying value of notes										6,300,000	6,600,000
Interest expense										4,200,000	543,000
Royalty discount							$ 6,000,000.0			$ 77.09
Royalty discount rate					45.42%		34.51%			74.59%
October 2020 Purchase Agreement \| Beginning On April 2021
Debt Instrument [Line Items]
Minimum monthly royalty repayment amount							$ 250,000
October 2020 Purchase Agreement \| Beginning On October 2021
Debt Instrument [Line Items]
Minimum monthly royalty repayment amount							$ 400,000
October 2020 Purchase Agreement \| Beginning On April 2022
Debt Instrument [Line Items]
Minimum monthly royalty repayment amount						600,000
October 2020 Purchase Agreement \| Beginning On October 2022
Debt Instrument [Line Items]
Minimum monthly royalty repayment amount						$ 750,000
December 2020 Purchase Agreement
Debt Instrument [Line Items]
Principal amount											1,000,000.0
Royalty interest			$ 12,000,000.0
Aggregate purchase price			$ 6,000,000.0
Percentage of net sales			10.00%
Percentage of worldwide revenues			10.00%
Minimum monthly royalty repayment amount			$ 750,000
Carrying value of notes										$ 7,600,000	6,000,000.0
Interest expense										$ 2,900,000	$ 14,000
Royalty discount			$ 6,000,000.0
Royalty discount rate			23.70%							23.28%
March 2021 Purchase Agreement [Member]
Debt Instrument [Line Items]
Aggregate purchase price		$ 5,000,000.0
Percentage of net sales		10.00%
Percentage of worldwide revenues		10.00%
Carrying value of notes										$ 5,800,000
Interest expense										$ 1,200,000
Percentage of royalties collected from licenses		50.00%
Threshold price		$ 10,000,000.0
March 2021 Purchase Agreement [Member] \| Beginning on March 2021
Debt Instrument [Line Items]
Royalty interest		10,000,000.0
Royalty discount		$ 5,000,000.0
Royalty discount rate		19.36%								19.14%
March 2021 Purchase Agreement [Member] \| Beginning On April 2021
Debt Instrument [Line Items]
Minimum monthly royalty repayment amount		$ 250,000
Increase in Royalty Repayment, Percent		5.00%
March 2021 Purchase Agreement [Member] \| Beginning On October 2021
Debt Instrument [Line Items]
Minimum monthly royalty repayment amount		$ 400,000
March 2021 Purchase Agreement [Member] \| Beginning On April 2022
Debt Instrument [Line Items]
Increase in Royalty Repayment, Percent		10.00%
Royalty Instrument, Debt Instrument Carrying Value		$ 600,000
March 2021 Purchase Agreement [Member] \| Beginning On October 2022
Debt Instrument [Line Items]
Minimum monthly royalty repayment amount		$ 750,000