Stockholders' Equity - Common Stock, Stock Option and Employee Stock Purchase Plan (Details)	12 Months Ended
Dec. 31, 2019 vote installment shares
Share-Based Compensation
Number of votes to which holders of common shares are entitled for each share held \| vote	1
Contractual term	10 years
2012 Plan
Share-Based Compensation
Maximum number of shares of common stock provided for issuance	8,000,000
2012 Plan \| Stock Option
Share-Based Compensation
Number of annual installments in which the awards would generally vest starting on the first anniversary of the date of grant \| installment	4
2012 Plan \| Stock Option \| Employees, Consultants and Advisors
Share-Based Compensation
Contractual term	10 years
2012 Plan \| Stock Option \| Directors
Share-Based Compensation
Contractual term	10 years
Vesting period	1 year
Employee Stock Purchase Plan
Share-Based Compensation
Maximum number of shares of common stock provided for issuance	700,000
Purchase price percentage	85.00%

Represents the number of votes to which the holders of common stock are entitled for each share held.

No definition available.

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- Definition

Represents the number of installments in which the awards would generally vest starting from the first anniversary of the date of grant.

+ References

No definition available.

+ Details

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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.

+ 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 (a)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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.

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- Definition

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

+ 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 (a)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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.

+ 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 (a)(2)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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

+ References

No definition available.

+ Details

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