Debt instrument, acceleration of maturity of debt, threshold amount.

No definition available.

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- Definition

Debt instrument final payment fee.

+ References

No definition available.

+ Details

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- Definition

Debt instrument final payment fee percentage.

+ References

No definition available.

+ Details

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- Definition

Debt instrument prepayment fee percentage.

+ References

No definition available.

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- Definition

Debt instrument variable rate.

+ References

No definition available.

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- Definition

Percentage of preferred shares issuable on term loans upon exercise of warrant.

+ References

No definition available.

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- Definition

Threshold net proceeds from preferred equity financing or underwritten initial public offering to borrow additional term loan.

+ References

No definition available.

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Period Type:	duration

- Definition

Warrants expiration date.

+ References

No definition available.

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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- Definition

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

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- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

+ Details

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- Definition

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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Period Type:	instant

- Definition

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

+ References

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

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- Definition

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

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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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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- Definition

Description of a subjective acceleration clause that is a part of the debt instrument. A subjective acceleration clause is a provision in a debt agreement that states that the creditor may accelerate the scheduled maturities of the obligation under conditions that are not objectively determinable (for example, if the debtor fails to maintain satisfactory operations or if a material adverse change occurs).

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of interest payable on debt, including, but not limited to, trade payables.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value of financial and nonfinancial obligations.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of the credit facility's borrowing capacity including discussion of how the borrowing capacity is determined (for example, borrowing capacity based on the amount of current assets).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

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Period Type:	duration

- Definition

Date the credit facility first became available, in CCYY-MM-DD format.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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Period Type:	instant

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

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Period Type:	instant

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Period Type:

- Details

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Long-Term Debt - Additional Information (Details) - USD ($)		3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 27, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Sep. 18, 2020
Debt Instrument [Line Items]
Long-term debt		$ 10,000,000		$ 10,000,000		$ 10,000,000
Series C Convertible Preferred Stock
Debt Instrument [Line Items]
Number of preferred stock shares initially exercisable upon funding of first tranche term loan							23,122
Lender Warrant
Debt Instrument [Line Items]
Warrant to purchase number of shares of common stock upon completion of IPO		23,122		23,122
Lender Warrant \| Series C Convertible Preferred Stock
Debt Instrument [Line Items]
Warrant exercise price per share		$ 10.812		$ 10.812
Warrant expiration date				Aug. 27, 2029
Percentage of preferred shares issuable on aggregate term loans upon exercise of warrant				2.50%
Number of preferred stock shares initially exercisable upon funding of first tranche term loan		117,924		117,924
Fair value of liabilities		$ 200,000		$ 200,000
Term Loans
Debt Instrument [Line Items]
Loan agreement date	Aug. 27, 2019
Long-term debt		$ 10,000,000		$ 10,000,000		10,000,000
Debt instrument, interest rate terms				The Term Loans bear interest at a floating annual rate equal to the greater of (i) the prime rate used by the Lender plus 2.0% (5.25% and 6.75% at September 30, 2020 and December 31, 2019, respectively), and (ii) 7.25%.
Debt instrument, payment terms				The monthly payments are interest-only until September 1, 2022. Subsequent to the interest-only period, the Term Loans will be payable in equal monthly installments of principal plus accrued and unpaid interest, through the maturity date of September 1, 2023 or, in the event the Fourth Tranche is funded in full, September 1, 2024 (the “Term Loan Maturity Date”).
Debt instrument, frequency of periodic payment				monthly
Debt instrument, final payment fee percentage		5.25%		5.25%
Debt instrument, final payment fee		$ 500,000		$ 500,000		$ 500,000
Debt instrument, prepayment fee percentage		3.00%		3.00%		3.00%
Debt instrument, subjective acceleration clause				The Loan Agreement includes customary affirmative and negative covenants and also includes standard events of default, including an event of default based on the occurrence of a material adverse event, and a default under any agreement with a third party resulting in a right of such third party to accelerate the maturity of any debt in excess of $0.3 million.
Debt instrument, acceleration of maturity of debt, threshold amount		$ 300,000		$ 300,000
Debt instrument, covenant compliance				As of September 30, 2020 and December 31, 2019, the Company was in compliance with all applicable covenants under the Loan Agreement.
Debt issuance costs		300,000		$ 300,000
Debt interest expense		300,000	$ 100,000	800,000	$ 100,000
Debt discount amortization		100,000	$ 23,000	200,000	$ 23,000
Accrued interest		$ 100,000		$ 100,000		$ 100,000
Term Loans \| Prime Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				2.00%
Debt instrument, variable rate				5.25%		6.75%
Term Loans \| Minimum
Debt Instrument [Line Items]
Debt instrument, variable rate				7.25%
Term Loans \| Maximum
Debt Instrument [Line Items]
Debt instrument, prepayment fee percentage		3.00%		3.00%
First Tranche Term Loan
Debt Instrument [Line Items]
Long-term debt	$ 10,000,000
Debt instrument, maturity date				Sep. 01, 2023
Fourth Tranche Term Loan
Debt Instrument [Line Items]
Additional borrowing capacity	$ 15,000,000
Expiration date	Dec. 31, 2020
Additional borrowing capacity, description				may borrow up to an additional $15.0 million in a fourth tranche at the Company’s option through December 31, 2020, subject to (i) achievement of certain clinical milestones and (ii) receipt of at least $70.0 million of net proceeds from either a preferred equity financing or an underwritten initial public offering.
Threshold net proceeds from preferred equity financing or underwritten initial public offering to borrow additional term loan	$ 70,000,000
Debt instrument, maturity date				Sep. 01, 2024