Commitments and contingencies.

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- Definition

Expected license agreement milestone payments.

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- Definition

Lease renewal start date.

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License Agreement Percentage of Right to Buy Down Royalties

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License agreement percentage of royalty obligation.

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Royalty buy down due period.

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- Definition

Area of a real estate property.

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- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

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- Definition

Description of assumptions and judgments used by lessee for allocating contract between lease and nonlease components for operating lease.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Indicates (true false) whether lessee has option to extend operating lease.

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- Definition

Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.

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Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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- Definition

Indicates line item in statement of financial position that includes current operating lease liability.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Commitments and Contingencies (Details Textual) $ in Thousands		3 Months Ended
	Feb. 24, 2020	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Aug. 01, 2013 ft²
Commitments And Contingencies [Line Items]
Area of office facilities taken on lease \| ft²					5,300
Additional operating lease term	6 months
Lease renewal start date	Apr. 01, 2020
Lease expiration date	Sep. 30, 2020
Lease renewal option		Under the February 2020 Amendment, the Company has no further rights to extend or renew this lease agreement.
Lessee, Operating Lease, Existence of Option to Extend [true false]		false
Lessee, operating lease, assumptions and judgments, allocation of lease and nonlease component		The lease includes real estate taxes and insurance, which is not a lease component and is not included in the lease obligation. In addition, common area maintenance charges are based on actual costs incurred and are a non-lease component that is not included in the lease obligation.
Operating lease, cash paid for measurement of lease liabilities		$ 25	$ 23
Weighted-average remaining lease term		6 months
Weighted-average discount rate		7.50%
Lease liability		$ 50,000		$ 25,000
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]		us-gaap:OtherAccruedLiabilitiesCurrent		us-gaap:OtherAccruedLiabilitiesCurrent
Royalty buy down due period		6 months
Minimum
Commitments And Contingencies [Line Items]
Percentage of royalty obligation		12.50%
Percentage of range of royalties that can be bought down		12.50%
Maximum
Commitments And Contingencies [Line Items]
Percentage of royalty obligation		25.00%
Percentage of range of royalties that can be bought down		17.00%
Upon Food and Drug Administration Approval
Commitments And Contingencies [Line Items]
Expected milestone payments due upon approval		$ 8,000
Upon Regulatory Marketing Approval
Commitments And Contingencies [Line Items]
Expected milestone payments due upon approval		$ 5,000
CPEC
Commitments And Contingencies [Line Items]
Percentage of royalty obligation		5.00%
General and Administrative Expense
Commitments And Contingencies [Line Items]
Rent expense		$ 23	$ 17