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- Definition

Shares Issued For License Fees

+ References

No definition available.

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- 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.

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No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

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- Definition

The cash inflow from the additional capital contribution to the entity.

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- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

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Common Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended		12 Months Ended
	Dec. 06, 2019	Jul. 22, 2019	Jun. 30, 2020	Jul. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Number of warrants issued (in shares)			1,914,280
Payments of stock issuance costs	$ 3,000		$ 10,100
Proceeds from issuance of common stock and pre-funded warrants, net, and related to acquisition			$ 150,100
Payment of other stock issuance costs	400
Sale of stock, consideration received on transaction	$ 42,600
License Agreements \| University Of Massachusetts (UMass) \| miniCEP290
Class of Stock [Line Items]
Shares issued for license fees (in shares)		75,000		75,000
Shares issued for license agreement (in shares)		100,000
Underwritten Offering
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares)			28,503,220
Sale of stock, price per share (in dollars per share)			$ 4.10
Underwritten Offering, Underwriters
Class of Stock [Line Items]
Sale of stock, price per share (in dollars per share)			$ 3.854
Private Placement
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares)			8,649,453
Warrant price (USD per share)			$ 4.099
Proceeds from issuance of common stock and pre-funded warrants, net, and related to acquisition					$ 33,237	$ 0	$ 0
Private Placement, Underwriters
Class of Stock [Line Items]
Warrant price (USD per share)			$ 3.853
Public Stock Offering
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares)	6,250,000
Sale of stock, price per share (in dollars per share)	$ 4.00
Number of warrants issued (in shares)	3,750,000
Warrant price (USD per share)	$ 3.999
Proceeds from issuance of common stock and pre-funded warrants, net, and related to acquisition					$ 116,883	$ 42,565	$ 0
Over-Allotment Option
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares)	1,500,000
Sale of stock, price per share (in dollars per share)	$ 3.736
Warrant price (USD per share)	$ 3.735