Portion of stock units subject to performance condition description one

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Portion of stock units subject to performance condition description two.

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Resignation date of employee.

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Share-based Compensation Arrangement by Share-based Payment Award, cumulative measurement.

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No definition available.

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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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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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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 10
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Description of terms 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
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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
-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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Share-Based Payment Awards - Performance-Based Stock Units - Additional Information (Detail) - Performance Stock Units [Member] - shares					12 Months Ended
	Oct. 12, 2019	Mar. 19, 2019	Oct. 12, 2018	Mar. 19, 2018	Dec. 31, 2019	Dec. 31, 2018
Former Chief Financial Officer [Member]
Class of Stock [Line Items]
Cumulative measurement period					3 years
Resignation date of employee					Jul. 08, 2019
Long Term Incentive Plan [Member]
Class of Stock [Line Items]
Number of Stock Units Outstanding					0	225,000
Performance Condition One [Member]
Class of Stock [Line Items]
Portion of stock units subject to an FDA acceptance of the Company's NDA submission of YUTIQ for review on or before March 31, 2018					One third
Stock units vesting, percentage		50.00%		50.00%
Number of Performance-Based Stock Units, vested				48,332
Number of performance-based stock units subject to service-based vesting of one year from performance condition achievement date		48,334
Performance Condition Two [Member]
Class of Stock [Line Items]
Portion of stock units subject to an FDA approval of YUTIQ on or before March 31, 2019					Two-thirds
Stock units vesting, percentage	50.00%		50.00%
Number of Performance-Based Stock Units, vested			96,668
Number of performance-based stock units subject to service-based vesting of one year from performance condition achievement date	96,666
Inducement Award Grants [Member] \| Former Chief Financial Officer [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award					The PSUs are subject to proportional vesting based on cumulative measurement over a 3-year period, with two-thirds of the award based upon the achievement of defined amounts of the Company’s product revenues through June 30, 2021 and one-third of the award based upon the net present value of each applicable business development transaction, as defined, through August 1, 2021 measured as of the date that each such transaction is consummated by the Company.