Shared-based Compensation (Details) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 31, 2020 USD ($) segment $ / shares shares	Dec. 31, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense \| $	$ 1.4
Automatic increase in shares to be issued (in percentage)		4.00%
Options, grants in period, weighted average grant date fair value (in USD per share) \| $ / shares	$ 0.42
Number Of Equity Compensation Plans \| segment	2
Options to purchase common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to options outstanding, weighted average period for expense to be recognized	2 years 1 month 6 days
2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)	4,200,000
Options outstanding, beginning balance (in shares)	2,496,771	731,189
Share-based payment arrangement, option \| 2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, beginning balance (in shares)	600,000
Share-based payment arrangement, option \| 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, beginning balance (in shares)	1,900,000
2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)	800,000

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Automatic Increase In Shares To Be Issue, Percentage

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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-Topic 718
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Amount of cost to be recognized for option under share-based payment arrangement.

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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.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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