Commitments and contingencies.

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- Definition

Expected license agreement milestone payments.

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

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

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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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Commitments and Contingencies (Details Textual) $ in Thousands			9 Months Ended
	Aug. 29, 2020 ft²	Feb. 24, 2020	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Aug. 01, 2013 ft²
Commitments And Contingencies [Line Items]
Area of office facilities taken on lease \| ft²	5,200					5,300
Additional operating lease term	36 months	6 months
Lease renewal start date		Apr. 01, 2020
Lease expiration date		Sep. 30, 2020
Lease renewal option	option to renew for an additional 36 month term at the then prevailing rental rate.		Under the February 2020 Amendment, the Company had no further rights to extend or renew this lease agreement.
Lessee, Operating Lease, Existence of Option to Extend [true false]	true		false
Lessee, operating lease, assumptions and judgments, allocation of lease and nonlease component			The lease included real estate taxes and insurance, which was not a lease component and was not included in the lease obligation. In addition, common area maintenance charges were based on actual costs incurred and were a non-lease component that was not included in the lease obligation.
Operating lease, cash paid for measurement of lease liabilities			$ 76	$ 68
Lease liability			$ 0		$ 25,000
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]			us-gaap:OtherAccruedLiabilitiesCurrent		us-gaap:OtherAccruedLiabilitiesCurrent
Operating lease term	42 months
Weighted-average discount rate	7.00%
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			$ 73	$ 52