Amount of noncash expense for share-based payment arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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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
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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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- 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
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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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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

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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Accounting for Share-Based Payments - Equity Incentive Plan (Details) - USD ($)		3 Months Ended
	Jun. 03, 2013	Mar. 31, 2020	Mar. 31, 2019	Feb. 21, 2018	Dec. 14, 2016	Dec. 02, 2014
Stock based compensation expense
Stock-based compensation expense		$ 8,246	$ 17,506
Equity Incentive Plan
Accounting for Shared-Based Payments
Vesting period (in years)	3 years
Contractual term	10 years
Authorized shares (in shares)				40,535	13,750	11,607
Available shares (in shares)		0
Stock based compensation expense
Stock-based compensation expense		$ 8,246	17,506
General and administrative \| Equity Incentive Plan
Stock based compensation expense
Stock-based compensation expense		5,910	10,365
Research and development \| Equity Incentive Plan
Stock based compensation expense
Stock-based compensation expense		$ 2,336	$ 7,141