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Related Parties (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Jun. 30, 2018	Nov. 30, 2017	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Related Party Transaction [Line Items]
Issued during period (in Shares)					814,339
Common stock options, exercise price (in dollars per share)					$ 13.99
Board Member | Consulting services
Related Party Transaction [Line Items]
Expenses incurred with related party (bi-weekly rate)	$ 5		$ 30	$ 30	$ 95	$ 91
Issued during period (in Shares)		544
Common stock options, exercise price (in dollars per share)		$ 0.367
Stock options, vesting period					3 years
Chief Scientific Officer | License Agreement
Related Party Transaction [Line Items]
Royalty obligation, percent of net sales			5.00%		5.00%
Milestone obligation			$ 600		$ 600

X

- Definition

Milestone Obligation

+ References

No definition available.

+ Details

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Period Type:	instant

X

- Definition

Royalty Obligation, Percentage of Sales

+ References

No definition available.

+ Details

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X

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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X

- 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.

+ Details

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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
-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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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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X

- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

+ Details

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- Details

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