Stock-Based Awards - Additional Information (Details) - $ / shares	3 Months Ended
Mar. 31, 2020	Jan. 01, 2020
Stock-Based Awards
Issuance of common stock in connection with employee stock purchase plan, shares	0
2014 Stock Incentive Plan \| Common Stock
Stock-Based Awards
Increased number of shares of common stock reserved for issuance		1,659,218
Options granted to purchase shares of common stock	1,690,850
Exercise price (in dollars per share)	$ 4.40
Number of shares of common stock available for issuance	877,252
2014 Employee Stock Purchase Plan \| Common Stock
Stock-Based Awards
Increased number of shares of common stock reserved for issuance		207,402
Number of shares of common stock available for issuance	685,369

Shares of common stock to increase shares reserved for issuance.

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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.

+ References

No definition available.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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