Share-based Compensation Arrangement by Share-based Payment Award, Authorization of Additional Shares Period

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Purchase Price Per Share

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized per Year

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Effective upon Registration

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum per Year

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
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-Publisher FASB
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-Topic 718
-SubTopic 10
-Section S99
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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents 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
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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

+ References

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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
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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).

+ 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

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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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

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-Publisher FASB
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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

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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- Definition

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

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- Definition

Number of shares issued under share-based payment arrangement.

+ References

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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Share-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions						1 Months Ended		3 Months Ended		12 Months Ended	93 Months Ended	96 Months Ended
	Apr. 30, 2019	Apr. 29, 2019	Apr. 18, 2019	Apr. 03, 2019	Nov. 15, 2018	Apr. 30, 2019	Oct. 31, 2018	Mar. 30, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2018	Mar. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options outstanding (in shares)								4,900,328		5,120,293	5,120,293	4,900,328
Shares issued (in shares)											4,335,331	4,504,914
Stock options granted (in shares)								0
Exercise price (in dollars per share)								$ 0.00
2011 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (in shares)								9,462,455				9,462,455
Shares available for grant (in shares)								57,213		6,859	6,859	57,213
2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (in shares)								4,577,114				4,577,114
Granted in period, effective upon registration (in shares)								50,000
Subsequent event \| 2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (in shares)	14,482,356					14,482,356
Stock options granted (in shares)		51,999	1,000,000	264,033
Exercise price (in dollars per share)				$ 20.02
Granted (in shares)			99,433
Purchase price (in dollars per share)			$ 0.01
Beginning 2020 fiscal year \| Subsequent event \| 2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized annually (in shares)	2,144,521
Percent of common stock outstanding, per year	4.00%
Employee Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense								$ 0.6	$ 0.2
Unrecognized compensation expense								$ 2.3		$ 2.4	$ 2.4	$ 2.3
Unrecognized compensation expense, period of recognition								2 years 8 months 12 days		2 years 10 months 24 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)							135,791	0
Purchase price (in dollars per share)							$ 0.02
Share-based compensation expense								$ 0.3
Unrecognized compensation expense, period of recognition								1 year 4 months 24 days
Fair value per share (in dollars per share)							$ 17.03	$ 17.03		$ 17.03	$ 17.03	$ 17.03
Unrecognized share-based compensation expense								$ 1.4				$ 1.4
Restricted Stock \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period							12 months
Restricted Stock \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period							24 months
Restricted Stock \| Subsequent event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)						99,433
Purchase price (in dollars per share)	$ 0.02					$ 0.02
Fair value per share (in dollars per share)	$ 20.02					$ 20.02
Vesting period	24 months
IPO \| 2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price (in dollars per share)								$ 25.00
Employee Stock \| 2018 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (in shares)					804,195
Additional shares authorized annually (in shares)					536,130
Percent of common stock outstanding, per year					1.00%
Period of additional shares authorized					10 years