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DEBT - Additional Information (Details) - USD ($) |  |  | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 01, 2022 | Sep. 30, 2020 | Dec. 31, 2022 | Mar. 10, 2023
Hercules and Silicon Valley Bank [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing capacity under term loan | $ 125,000,000 |  | $ 75,000,000 |  |
Principal amount outstanding under term loan |  |  |  | $ 50,000,000 |
Description of maturity date terms for term loan |  |  | the Term Loan matures on October 1, 2024, or the Loan Maturity Date, and may be extended up to an additional 12 months upon the achievement of certain clinical, regulatory and financial milestones. |  |
Term loan interest rate description |  |  |  | The Term Loan bears interest at a floating rate per annum equal to the greater of either (i) 9.0% or (ii) 9.0% plus the prime rate as reported in The Wall Street Journal (7.5% as of December 31, 2022) less 3.25%. |
Term loan maturity date |  |  | Oct. 01, 2024 |  |
Percentage added to prime rate for debt instrument interest rate |  |  | 9.00% |  |
Interest only period payment term description |  |  | the interest-only period expires May 1, 2023. Upon the achievement of certain regulatory and financial milestones, the interest-only period may be extended for another six months until November 1, 2023. |  |
End of term charge for loan, percentage |  |  | 6.55% |  |
Minimum amount of prepayment allowed under debt instrument |  |  | $ 5,000,000 |  |
Description of term loan payment terms |  |  | At our option, upon at least five business days’ prior written notice to Hercules, we may prepay all or any portion greater than or equal to $5,000,000 of the outstanding loan by paying the entire principal balance (or portion thereof) and all accrued and unpaid interest. Such prepayment is subject to a prepayment charge of 1.5% of the prepayment amount, if the prepayment is made in any of the first 36 months following the Closing Date for any draw downs prior to the second amendment. Thereafter, any prepayment is not subject to a prepayment charge. |  |
Additional percentage of interest on past due amounts |  |  | 5.00% |  |
Carrying value of term loan, net |  |  |  | $ 51,157,000 |
Unamortized debt discount and issuance costs |  |  |  | 628,000 |
Accrued end of term charge |  |  |  | 1,785,000 |
Hercules and Silicon Valley Bank [Member] | Second Amendment [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Available remaining loan principal under second amendment |  |  |  | $ 75,000,000 |
Prepayment charge (as a percentage) | 1.50% |  |  |  |
Description of term loan payment terms | Under the second amendment, if we choose to prepay the principal with respect to any future draw down after the Effective Date, any such prepayment within the first 36 months after the Effective Date will be subject to a prepayment charge equal to 1.5% of the principal amount prepaid. No prepayment charge will be assessed for any prepayment occurring more than 36 months after the Effective Date. |  |  |  |
Minimum cash balance as a percentage of loan amount outstanding |  | 50.00% |  |  |
Debt covenant minimum cash balance |  | $ 30,000,000 |  |  |
Debt discount under second amendment | $ 100,000 |  |  |  |
Debt issuance costs | 75,000 |  |  |  |
Charge for prepayment occurring 36 months after effective date | 0 |  |  |  |
Hercules and Silicon Valley Bank [Member] | Second Amendment [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Available remaining loan principal under second amendment |  |  |  |  | $ 55,000,000.0
Hercules and Silicon Valley Bank [Member] | Tranche One [Member] | Second Amendment [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing capacity under term loan | $ 20,000,000 |  |  |  |
Expiration date to borrow under a tranche for a debt instrument, description | earlier of 30 days of the achievement of certain clinical and financial milestones or September 15, 2023 |  |  |  |
Hercules and Silicon Valley Bank [Member] | Tranche Two [Member] | Second Amendment [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing capacity under term loan | $ 10,000,000 |  |  |  |
Start date to borrow under a tranche for a debt instrument | Jan. 01, 2023 |  |  |  |
Expiration date to borrow under a tranche for a debt instrument | Dec. 15, 2023 |  |  |  |
Hercules and Silicon Valley Bank [Member] | Tranche Three [Member] | Second Amendment [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing capacity under term loan | $ 20,000,000 |  |  |  |
Start date to borrow under a tranche for a debt instrument | Sep. 15, 2023 |  |  |  |
Expiration date to borrow under a tranche for a debt instrument | Sep. 15, 2024 |  |  |  |
Hercules and Silicon Valley Bank [Member] | Tranche Four [Member] | Second Amendment [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing capacity under term loan | $ 25,000,000 |  |  |  |
Expiration date to borrow under a tranche for a debt instrument | Dec. 31, 2024 |  |  |  |
Hercules and Silicon Valley Bank [Member] | Option one min cash debt covenant [Member] | Second Amendment [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Minimum cash balance as a percentage of loan amount outstanding | 40.00% |  |  |  |
Hercules and Silicon Valley Bank [Member] | Option Two Min Cash Debt Covenant [Member] | Second Amendment [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Minimum cash balance as a percentage of loan amount outstanding | 25.00% |  |  |  |
Minimum market capitalization requirement for option | $ 750,000,000 |  |  |  |
Hercules and Silicon Valley Bank [Member] | Option three min cash debt covenant [Member] | Second Amendment [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Minimum cash balance requirement to be met as a percentage of six-month product revenue against forecast | 70.00% |  |  |  |
Minimum percentage of net product revenues maintenance period | 6 months |  |  |  |
Hercules [Member] | Second Amendment [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percentage of remaining term commitments held under loan agreement |  |  |  |  | 65.00%
Silicon Valley Bank [Member] | Second Amendment [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percentage of remaining term commitments held under loan agreement |  |  |  |  | 35.00%

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