No definition available.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

+ Details

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- References

No definition available.

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Equity Incentive Plan - Additional information regarding stock option (Details) - 2019 Equity Incentive Plan - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Number of Shares
Number of Stock options outstanding	3,742,144	2,136,291	567,319
Shares subject to stock options	1,793,254
Weighted-Average Exercise Price
Options Outstanding, weighted-Average Exercise Price per share	$ 9.58	$ 6.06	$ 3.96
Options Exercisable, weighted-average exercise Price per share	$ 5.87
Weighted-Average Remaining Contractual Life
Weighted-Average Remaining Contractual Life of options outstanding	8 years 7 months 6 days	8 years 10 months 24 days	8 years 1 month 6 days
Up to $0.66
Number of Shares
Number of Stock options outstanding	48,984
Shares subject to stock options	48,984
Weighted-Average Exercise Price
Options Outstanding, weighted-Average Exercise Price per share	$ 0.17
Options Exercisable, weighted-average exercise Price per share	$ 0.17
Weighted-Average Remaining Contractual Life
Weighted-Average Remaining Contractual Life of options outstanding	2 years 10 months 24 days
$4.56-$5.16
Number of Shares
Number of Stock options outstanding	1,474,367
Shares subject to stock options	1,450,561
Weighted-Average Exercise Price
Options Outstanding, weighted-Average Exercise Price per share	$ 5.00
Options Exercisable, weighted-average exercise Price per share	$ 5.00
Weighted-Average Remaining Contractual Life
Weighted-Average Remaining Contractual Life of options outstanding	7 years 8 months 12 days
$9.94-$12.95
Number of Shares
Number of Stock options outstanding	1,720,981
Shares subject to stock options	293,709
Weighted-Average Exercise Price
Options Outstanding, weighted-Average Exercise Price per share	$ 11.56
Options Exercisable, weighted-average exercise Price per share	$ 11.13
Weighted-Average Remaining Contractual Life
Weighted-Average Remaining Contractual Life of options outstanding	9 years 1 month 6 days
$16.10-$22.06
Number of Shares
Number of Stock options outstanding	497,812
Weighted-Average Exercise Price
Options Outstanding, weighted-Average Exercise Price per share	$ 17.18
Weighted-Average Remaining Contractual Life
Weighted-Average Remaining Contractual Life of options outstanding	9 years 6 months