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Debt instrument interest payment extended term.

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Fair value of warrants.

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Line of credit facility collateral fees.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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

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Description of the frequency of periodic payments (monthly, quarterly, annual).

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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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Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of the fee for available but unused credit capacity under the credit facility.

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Description of the fees for amounts available, but unused under the credit facility.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Debt - Additional Information (Details) - USD ($)	12 Months Ended
Debt - Additional Information (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Jul. 19, 2021	Nov. 30, 2020	Jan. 31, 2019
Debt Instrument [Line Items]
Term Loan	$ 35,000,000
Preferred Stock, Shares Issued	0	0
Payments of Debt Issuance Costs	$ 0	$ 142,000
IPO
Debt Instrument [Line Items]
Warrants to purchase common stock			659,028
Senior Secured Twenty Twenty Term Loan
Debt Instrument [Line Items]
Debt Instrument, Term	5 years
Debt instrument, frequency of periodic payment	interest-only payments
Debt instrument interest payment extended term	24 months
Debt instrument payment terms	The 2020 Term Loan requires monthly interest-only payments, which began in December 2020. Principal payments are scheduled to begin in December 2022, however, the interest-only period can be extended by an additional 24 months provided that the Company is in compliance with certain financial covenants and other terms as defined in the MidCap Loan Agreements. The Company currently has the ability to and intends to extend the interest-only period through December 2023.
Debt instrument, effective interest rate	12.94%
Debt issuance costs	$ 500,000
Percentage of final payment fee	6.00%
Accrued Accretion On Maturity Payments	$ 900,000	$ 500,000
Senior Secured Twenty Twenty Term Loan \| Series F Redeemable Convertible Preferred Stock
Debt Instrument [Line Items]
Warrants term	10 years
Warrants to purchase common stock	300,000
Class of warrant exercise price	$ 21.88
Fair value of warrants	$ 1,800,000
Senior Secured Twenty Twenty Term Loan \| Tranche One Loans
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 12,000,000.0
Senior Secured Twenty Twenty Term Loan \| Tranche Two Loans
Debt Instrument [Line Items]
Maximum borrowing capacity				2,000,000.0
Senior Secured Twenty Twenty Term Loan \| Tranche Three Loans
Debt Instrument [Line Items]
Maximum borrowing capacity				21,000,000.0
Term Loan				21,000,000.0
Senior Secured Twenty Twenty Term Loan \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, variable rate	7.00%
Revolving Credit Facility Two Thousand Twenty
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage	0.50%
Line of credit facility collateral fees	0.50%
Line of credit facility, commitment fee amount	$ 15,000,000.0
Line of credit facility, commitment fee description	An unused line fee of 0.5% is payable monthly based on the average unused balance and a collateral management fee of 0.5% is payable monthly based on the outstanding balance of the 2020 Revolver.
Line of Credit Facility, Current Borrowing Capacity	$ 5,000.0
Revolving Credit Facility Two Thousand Twenty \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, variable rate	4.50%
Mid Cap Financial Services
Debt Instrument [Line Items]
Maximum borrowing capacity				40,000,000.0	$ 25,000,000.0
Mid Cap Financial Services \| Senior Secured Two Thousand Nineteen Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity					20,000,000.0
Mid Cap Financial Services \| Senior Secured Twenty Twenty Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity				35,000,000.0
Mid Cap Financial Services \| Revolving Credit Facility Two Thousand Nineteen
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 5,000,000.0
Mid Cap Financial Services \| Revolving Credit Facility Two Thousand Twenty
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 5,000,000.0