Debt instrument conversion base amount to calculate cap price per share.

No definition available.

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Balance Type:	credit
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- Definition

Debt instrument due and payable date.

+ References

No definition available.

+ Details

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- Definition

Debt instrument interest accrued.

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Initial public offering conversion price percentage.

+ References

No definition available.

+ Details

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- Definition

Non-qualified equity financing conversion price percentage.

+ References

No definition available.

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- Definition

Qualified equity financing conversion price percentage.

+ References

No definition available.

+ Details

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- Definition

Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

+ References

No definition available.

+ Details

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- Definition

Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

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Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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Period Type:	instant

- Definition

Net increase or decrease in the carrying amount of the debt instrument for the period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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Balance Type:	na
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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Balance Type:	na
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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

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-Publisher FASB
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Period Type:	duration

- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

+ Details

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Balance Type:	debit
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- Definition

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Balance Type:	debit
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- Definition

The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt.

+ References

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Convertible Promissory Notes - Additional Information (Details) - USD ($)			1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 29, 2019	May 07, 2019	Apr. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Frazier Convertible Note Financing
Debt Instrument [Line Items]
Aggregate amount of debt instrument			$ 2,400,000
Debt instrument issued, amount			$ 500,000					$ 1,900,000
Increases (decreases) in fair value of debt instrument					$ 18,000	$ (50,000)	$ 22,000
Interest expense				$ 0	$ 4,000	15,000	$ 8,000
Frazier Convertible Note Financing \| Minimum
Debt Instrument [Line Items]
Debt instrument, interest rate percentage			1.68%
Frazier Convertible Note Financing \| Maximum
Debt Instrument [Line Items]
Debt instrument, interest rate percentage			2.55%
May 2019 Convertible Note Financing
Debt Instrument [Line Items]
Aggregate amount of debt instrument		$ 90,300,000
Debt instrument, interest rate percentage		6.00%
Fair value of convertible promissory notes		$ 2,400,000
Interest expense				1,400,000		2,200,000
Proceeds from issuance of unsecured debt		$ 87,800,000
Debt instrument maturity date		May 07, 2020
Debt instrument due and payable date		May 07, 2022
Debt instrument conversion base amount to calculate to cap price per share		$ 500,000,000
Debt instrument principal amount				90,300,000		90,300,000
Debt instrument accrued interest				2,200,000		2,200,000
May 2019 Convertible Note Financing \| Other Income (Expense)
Debt Instrument [Line Items]
Increases (decreases) in fair value of debt instrument				$ 2,500,000		$ 4,900,000
May 2019 Convertible Note Financing \| Common Stock \| Subsequent Event
Debt Instrument [Line Items]
Debt instrument conversion, shares issued	6,107,918
May 2019 Convertible Note Financing \| Frazier
Debt Instrument [Line Items]
Debt instrument purchased amount		$ 20,000,000
May 2019 Convertible Note Financing \| Minimum
Debt Instrument [Line Items]
Minimum percentage of outstanding principal payable at maturity date		60.00%
May 2019 Convertible Note Financing \| Maximum
Debt Instrument [Line Items]
Qualified equity financing conversion price percentage per share		80.00%
Non-qualified equity financing conversion price percentage per share		80.00%
Initial public offering conversion price percentage per share		80.00%