Cash and cash equivalents, short-term investments and receivable on sale of net operating losses.

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- Definition

Net proceeds from sale of net operating losses.

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No definition available.

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Debt instrument related end term charges.

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- Definition

Receivable on sale of net operating losses.

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No definition available.

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- Definition

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

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Contractual interest rate for funds borrowed, under the debt agreement.

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The cash inflow associated with the amount received by a corporation from a shareholder during the period.

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The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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The cash inflow associated with the amount received from holders exercising their stock warrants.

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Financial Condition and Business Plan (Details Narrative) - USD ($)				1 Months Ended			3 Months Ended		12 Months Ended
	May 10, 2021	Mar. 19, 2021	Aug. 28, 2020	Jan. 31, 2021	Sep. 30, 2020	Jun. 30, 2018	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020
Cumulated net losses							$ (317,689,344)				$ (312,000,341)
Cash and cash equivalents, short-term investments and receivable on sale of net operating losses							54,600,000
Receivable on sale of net operating losses							1,845,823
Proceeds from warrant exercises							1,508,666
Proceeds from sale of equity							$ 15,000,000
Horizon Credit Agreement [Member] \| Horizon Technology Finance Corporation [Member]
Proceeds from new capital						$ 10,000,000
Debt instrument face amount			$ 10,000,000
Horizon Credit Agreement [Member] \| Horizon Technology Finance Corporation [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt instrument, interest rate						7.625%
Amendment to Horizon Credit Agreement [Member] \| Horizon Technology Finance Corporation [Member]
Repayment of loans			5,000,000
Debt instrument face amount			5,000,000
Debt instrument related end term charges			$ 200,000
Capital on DemandTM Sales Agreement [Member] \| Jones Trading Institutional Services, LLC [Member]
Proceeds from new capital		$ 6,900,000
Debt instrument face amount				$ 35,000,000
Proceeds from warrant exercises				$ 1,500,000
New Jersey [Member]
Net proceeds from sale of net operating losses					$ 2,000,000				$ 12,200,000	$ 13,000,000
New Jersey [Member] \| Subsequent Event [Member] \| Minimum [Member]
Net proceeds from sale of net operating losses	$ 15,000,000
New Jersey [Member] \| Subsequent Event [Member] \| Maximum [Member]
Net proceeds from sale of net operating losses	$ 20,000,000