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Extended period of interest only term loan.

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Term loans number of tranches.

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Amount of amortization expense attributable to debt issuance costs.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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

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Aggregate amount of interest expense on all borrowings.

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Debt - Additional Information (Details) $ in Thousands			3 Months Ended		9 Months Ended
Debt - Additional Information (Details) $ in Thousands	Dec. 08, 2020 USD ($) item	Mar. 02, 2020 USD ($) tranche	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2020 USD ($)	Mar. 31, 2017 USD ($)
Debt Instrument [Line Items]
Interest expense			$ 1,100	$ 1,000	$ 3,000
Cash interest expense			900	800	2,500
Non-cash interest expense			$ 200	$ 200	$ 500
Solar Capital Ltd
Debt Instrument [Line Items]
Amendment fee payable						$ 60	$ 100
Solar Capital Ltd \| Term A Loan \| Maximum
Debt Instrument [Line Items]
Extended period of interest only term loan	36 months
Solar Capital Ltd \| Term A Loan \| Minimum
Debt Instrument [Line Items]
Extended period of interest only term loan	24 months
Solar Capital Ltd \| Term A Loan and Term B Loan
Debt Instrument [Line Items]
Basis spread on variable rate		1.66%
Interest rate		7.65%
Interest-only period		2022-03
Interest-only period upon achievement of revenues		2023-02
Number of default events		0
Line of credit facility, conversion to term loan, conditions					At the Company’s election, the interest only period may be extended through February 2023 if the Company satisfies a minimum net product revenue covenant through March 1, 2022 and no event of default shall have occurred.
Solar Capital Ltd \| $35.0 Million Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity								$ 35,000
Solar Capital Ltd \| $35.0 Million Credit Facility \| Term A Loan
Debt Instrument [Line Items]
Borrowings outstanding under credit facility		$ 35,000
Solar Capital Ltd \| $50.0 Million Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 15,000	$ 50,000
Borrowings outstanding under credit facility	$ 5,000
Term loans number of tranches	3	2
Increase in final payment fees percentage upon extension interest only periods		5.50%
Trailing twelve month net product revenue first threshold limit to pay exit fee		$ 100,000
Trailing twelve month net product revenue Second threshold limit to pay exit fee		$ 125,000
Percentage of exit fee for liquidation, dissolution, winding up or change of control of the Company		4.50%
Percentage of exit fee upon achievement of any trailing twelve month revenues		2.25%
Percentage of exit fee upon achievement of both trailing twelve month revenues		4.50%
Capped exit fee percentage on term loan principal amount		4.50%
Solar Capital Ltd \| $50.0 Million Credit Facility \| Prepaid on or Before First Anniversary of Funding
Debt Instrument [Line Items]
Prepayment fees percentage		3.00%
Solar Capital Ltd \| $50.0 Million Credit Facility \| Prepaid After First and on or Before Second Anniversary of Funding
Debt Instrument [Line Items]
Prepayment fees percentage		2.00%
Solar Capital Ltd \| $50.0 Million Credit Facility \| Prepaid After Second Anniversary of Funding
Debt Instrument [Line Items]
Prepayment fees percentage		1.00%
Solar Capital Ltd \| $50.0 Million Credit Facility \| Term A Loan
Debt Instrument [Line Items]
Credit facility maturity date		Feb. 28, 2025
Solar Capital Ltd \| $15 Million Credit Facility \| Term B Loan
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 15,000
Line of credit facility, conversion to term loan, conditions					Under the Term B Loan portion of the Solar Facility, the Company is permitted to borrow, at its election, up to an aggregate amount of $15.0 million, (i) upon the Company achieving a specified amount of trailing twelve months net product revenue, and (ii) assuming there has been no event of default under the Solar Facility prior to such election. Once the net product revenue condition has been satisfied, the Company may make an election to borrow under the Term B Loan portion of the Solar Facility until the earlier of (a) December 15, 2021, (b) 30 days following achievement of the net product revenue condition or (c) the occurrence of an event of default.