Represents information pertaining to expiration period of obligation to pay royalties under the agreement.

No definition available.

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- Definition

The vesting period for employer contributions to become full vested for participants from the employees commencement of employment.

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No definition available.

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- Definition

Represent the Number of Operating leases Annual renewal option.

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No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

n/a.

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No definition available.

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- Definition

Area of land held.

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No definition available.

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No definition available.

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

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No definition available.

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- References

No definition available.

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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Section 50
-Paragraph 2
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- References

No definition available.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

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Commitments and Contingencies (Details) $ in Thousands	1 Months Ended			12 Months Ended
Commitments and Contingencies (Details) $ in Thousands	Dec. 31, 2018 USD ($) ft²	Nov. 30, 2018 ft² item	Dec. 31, 2015 ft²	Dec. 31, 2018 USD ($) ft²	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Leases
Operating lease agreement term		3 years
Rental square feet office space \| ft²		1,000	4,000
Number of operating lease annual renewal options \| item		0
Rent expense under operating lease				$ 200	$ 300	$ 300
Annual future minimum lease payments
2019	$ 298			298
2020	807			807
2021	819			819
2022	807			807
2023	823			823
Thereafter	1,482			1,482
Total minimum lease payments	$ 5,036			$ 5,036
Employee Benefit Plan
Maximum employees contribution (as a percent)				50.00%
Vesting period				4 years
Amended Lease
Leases
Operating lease agreement term			62 months
Rental square feet office space \| ft²			8,500
Second Amended Lease
Leases
Operating lease agreement term	78 months
Rental square feet office space \| ft²	22,500			22,500
License Agreement \| Purdue Neuroscience Company
License agreement
Expiration period of obligation to pay royalties				10 years