Stock-Based Compensation - Narratives (Details) $ / shares in Units, $ in Millions	9 Months Ended
Sep. 30, 2023 USD ($) item $ / shares shares
Stock-Based Compensation
Number of equity incentive plans \| item	2
Stock Options
Stock-Based Compensation
Weighted average grant date fair value, Options (per share) \| $ / shares	$ 7.19
Inducement grants	357,425
Aggregate intrinsic value of outstanding options \| $	$ 0.8
Aggregate intrinsic value of exercisable options \| $	0.8
Aggregate intrinsic value of exercised options \| $	0.1
Unrecognized compensation expense \| $	$ 4.2
Weighted average period for recognition of unrecognized expenses	2 years 3 months 18 days
Restricted stock units
Stock-Based Compensation
Inducement grants	66,750
Aggregate intrinsic value \| $	$ 6.9
Unrecognized compensation expense \| $	$ 5.1
Weighted average period for recognition of unrecognized expenses	3 years
Granted	665,259
Performance based restricted stock units
Stock-Based Compensation
Weighted average grant date fair value, Equity Instruments (per share) \| $ / shares	$ 10.95
Granted	250,149
Performance based restricted stock units \| Minimum
Stock-Based Compensation
Vest Range	0.00%
Performance based restricted stock units \| Maximum
Stock-Based Compensation
Vest Range	110.00%
Service based restricted stock unit
Stock-Based Compensation
Vesting period	4 years
Weighted average grant date fair value, Equity Instruments (per share) \| $ / shares	$ 10.55
Granted	415,110
2019 Equity Incentive Plan
Stock-Based Compensation
Shares available for future issuance	660,643
Common Stock Capital Shares Reserved For Future Annual Issuance	432,442
Potential Common Shares Added Annually To Equity Plan Evergreen Option, Percentage Of Shares Outstanding Last Day Of Fiscal Year	4.00%
2019 Equity Incentive Plan \| Stock Options
Stock-Based Compensation
Vesting period	4 years
Contractual term	10 years

Common Stock Capital Shares Reserved For Future Annual Issuance

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Represents about number of equity incentive plans.

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Potential Common Shares Added Annually To Equity Plan Evergreen Option, Percentage Of Shares Outstanding Last Day Of Fiscal Year

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Number of inducement stock options outstanding.

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Aggregate number of common shares reserved for future issuance.

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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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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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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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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Percentage of vesting of award under share-based payment arrangement.

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Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

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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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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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