Common stock capital shares reserved remaining for future issuance.

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- Definition

Share based compensation arrangement by share based payment award exercise price with purchase price of common stock percentage of estimated grant date fair value for shareholders.

+ References

No definition available.

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- Definition

Share based compensation options under plan could be granted for periods.

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- Definition

Share based compensation options under plan may be granted for periods.

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No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Description of service or performance condition required to be met for earning right to award under share-based payment arrangement. Includes, but is not limited to, combination of market, performance or service condition.

+ References

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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.

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No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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-Topic 718
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- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

+ References

No definition available.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

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Equity Incentive Plans and Stock-Based Compensation - Additional Information (Details) - USD ($)	1 Months Ended	9 Months Ended
	May 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020	Dec. 31, 2019	Jan. 31, 2019	Jul. 31, 2018	Aug. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total shares reserved for future issuance		7,416,476			20,346,844
Two Thousand And Twenty Stock Options And Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares outstanding percentage	5.00%
Total shares reserved for future issuance		3,900,000
Exercise price as a percentage of estimated grant date fair value of shares		10.00%
Expiration period from date of grant		5 years
2015 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total shares reserved for future issuance				1,400,000	567,110	400,000	1,000,000
Exercise price as a percentage of estimated grant date fair value of shares		10.00%
Expiration period from date of grant		5 years
Number of remaining shares reserved for issuance		2,500,000
Restricted Common Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting rights		The repurchase price for unvested shares of common stock will be the lower of (i) the fair market value on the date of repurchase or (ii) their original purchase price.
Number of shares granted		0	0
Restricted Common Stock Awards \| Accrued Expenses and Other Liabilities
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Accrued expenses and other liabilities		$ 13,000			$ 22,000
Maximum \| Two Thousand And Twenty Stock Options And Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options under plan may be granted for periods		10 years
Exercise price as a percentage of estimated grant date fair value of shares		110.00%
Maximum \| 2015 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price as a percentage of estimated grant date fair value of shares		110.00%
Options under plan could be granted for periods		10 years
Percentage of estimated fair value of shares on date of grant		100.00%
Maximum \| Restricted Common Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		4 years
Minimum [Member] \| Restricted Common Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		1 year
Common Stock \| Maximum \| Two Thousand And Twenty Stock Options And Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares authorized for future grant	4,200,000
Common Stock \| Maximum \| 2015 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares authorized for future grant								1,500,000