It represents the period of monthly vesting of share-based compensation awards.

No definition available.

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- Definition

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

+ References

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

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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
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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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- References

No definition available.

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- Definition

Gross number of share options (or share units) granted during the 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
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- Definition

Percentage of vesting of award under share-based payment arrangement.

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Share-Based Payments - Inducement Awards Outside of the 2019 Inducement Plan (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Jul. 25, 2018	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Inducement Awards Outside of the 2019 Inducement Plan
Share-Based Payments
Share-based compensation expense		$ 100	$ 100
Additional disclosures
Weighted-average remaining contractual life		8 years 3 months 18 days
Total unrecognized compensation related to unvested options		$ 1,000
Recognition period		1 year 2 months 12 days
Inducement Awards Outside of the 2019 Inducement Plan \| Non-statutory option
Share-Based Payments
Vesting period	4 years
Options exercise price (in dollars per share)	$ 3.53	$ 2.05
Exercise period	10 years
Inducement Awards Outside of the 2019 Inducement Plan \| Non-statutory option \| Chief Executive Officer
Share-Based Payments
Options granted during the period	850,000
Inducement Awards Outside of the 2019 Inducement Plan \| Non-statutory option \| Vesting period, year one
Share-Based Payments
Percentage that vests during the period	25.00%
Inducement Awards Outside of the 2019 Inducement Plan \| Non-statutory option \| Vesting period, years 2-4
Share-Based Payments
Percentage that vests during the period	75.00%
Monthly vesting period	36 months
Inducement Awards Outside of the 2019 Inducement Plan \| Non-statutory option \| Upon receipt of FDA approval
Share-Based Payments
Percentage that vests during the period	50.00%
Inducement Awards Outside of the 2019 Inducement Plan \| Non-statutory option \| First anniversary of FDA approval
Share-Based Payments
Percentage that vests during the period	50.00%
Inducement Awards Outside of the 2019 Inducement Plan \| Restricted Stock Units ("RSUs")
Share-Based Payments
Options exercise price (in dollars per share)		$ 3.53
Inducement Awards Outside of the 2019 Inducement Plan \| Restricted Stock Units ("RSUs") \| Chief Executive Officer
Share-Based Payments
Options granted during the period	150,000
2019 Inducement Plan
Share-Based Payments
Options granted during the period		182,000
Options exercise price (in dollars per share)		$ 1.95		$ 2.14
Share-based compensation expense		$ 40	$ 59
Additional disclosures
Total unrecognized compensation related to unvested options		$ 700
Recognition period		1 year 7 months 6 days