Fair market value option price.

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Negotiated discount rate.

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Share Based Compensation Arrangement By Share Based Payment Additional Award Available For Grant

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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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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.

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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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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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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reduction in the number of shares during the period as a result of a reverse stock split.

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Amount remaining of a stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Stockholders' Equity - Additional Information (Details) - USD ($)			3 Months Ended
	Mar. 15, 2022	Jul. 20, 2021	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense			$ 7,500,000
Unrecognized stock-based compensation expense, weighted-average recognition period			3 years 18 days
Stock-based compensation expense			$ 1,500,000	$ 400,000
Stock purchased under share buyback	$ 1,100
Share buyback program	12.5
Fair market value option price	$ 11.83
Negotiated discount	2.50%
Stock Options \| 2018 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional Award		0
Stock issued during period total shares issued for reverse stock splits		9,300,000
Date of grant		10 years
Number of shares available for grant		12,000,000
Stock Options \| 2018 Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		5 years
Stock Options \| 2021 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant		3,000,000