Shared-Based Compensation (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
Dec. 31, 2019 USD ($) segment $ / shares shares	Dec. 31, 2018 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense \| $	$ 0.9
Number of equity compensation plans \| segment	2
Automatic increase in shares to be issue (in percentage)	4.00%
Weighted average grant date fair value (in USD per share) \| $ / shares	$ 0.84	$ 7.97
Options vested in period, fair value \| $	$ 1.0
2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)	2.1
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	1 year 8 months 12 days
Stock options \| 2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued in period (in shares)	0.6
Stock options \| 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued in period (in shares)	0.1

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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.

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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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Number of shares issued under share-based payment arrangement.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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