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FINANCIAL CONDITION AND LIQUIDITY (Details Narrative) - USD ($) |  | 1 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 28, 2020 | Jun. 30, 2018 | Dec. 31, 2022 | Dec. 31, 2021 | Jun. 30, 2021 | Jan. 31, 2021 | Feb. 28, 2020 | Aug. 31, 2018 | Oct. 31, 2017 | Jun. 30, 2017 | Feb. 28, 2017 | Jun. 30, 2015 | Jun. 30, 2013 | Feb. 28, 2013 | Jul. 31, 2011
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulated net losses |  |  | $ 368,667,825 | $ 332,769,591 |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents, short-term investments |  |  | 32,800,000 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of net operating losses |  |  | 1,600,000 |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  | 6,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds from sale of net operating losses |  |  | $ 1,600,000 | 1,400,000 |  | $ 28,000,000.0 | $ 2,000,000.0 | $ 1,500,000 | $ 800,000 | $ 300,000 | $ 300,000 | $ 1,600,000 | $ 1,500,000 | $ 1,400,000 | $ 4,200,000
Horizon Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument related end term charges | $ 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Horizon Credit Agreement [Member] | Horizon Technology Finance Corporation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from contributed capital |  | $ 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount | 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  | $ 10,000,000 |  |  |  |  |  |  |  |  |  |
SVB Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, description |  |  | Payments under the loan agreement are interest only (calculated based on one-month LIBOR plus 7.625%) for the first 24 months through July 2020, followed by a 21-month amortization period of principal and interest starting on August 1, 2020 and ending through the scheduled maturity date on April 1, 2023. |  |  |  |  |  |  |  |  |  |  |  |
SVB Loan Facility [Member] | Silicon Valley Bank [Member] | Prime Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  | 7.75% |  |  |  |  |  |  |  |  |  |  |  |
SVB Loan Facility [Member] | Horizon Technology Finance Corporation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  | $ 6,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Repayment of outstanding in-debtedness amount |  |  |  |  | $ 6,000,000 |  |  |  |  |  |  |  |  |  |
Amendment to Horizon Credit Agreement [Member] | Horizon Technology Finance Corporation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of notes payable | 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount | 5,000,000 |  |  | 5,000,000 |  |  |  |  |  |  |  |  |  |  |
Debt instrument related end term charges | $ 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
NEW JERSEY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds from sale of net operating losses |  |  | $ 1,600,000 | 1,500,000 |  | $ 1,400,000 |  |  |  |  |  |  |  |  |
NEW JERSEY | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds from sale of net operating losses |  |  |  | 15,000,000 |  |  |  |  |  |  |  |  |  |  |
NEW JERSEY | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds from sale of net operating losses |  |  |  | 20,000,000 |  |  |  |  |  |  |  |  |  |  |
Operating costs and expenses |  |  |  | $ 1,900,000 |  |  |  |  |  |  |  |  |  |  |

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