Stock-Based Compensation - Additional information (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Sep. 30, 2021 |
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| Stock-Based Compensation | |||
| Unrecognized compensation costs | $ 3.5 | ||
| Weighted-average amortization period | 1 year 4 months 24 days | ||
| Intrinsic value of stock options exercised | $ 0.1 | $ 0.1 | |
| Weighted average grant date fair value of options granted | $ 2.33 | $ 5.20 | |
| Stock options granted to consultant for future services | 225,000 | ||
| Unvested restricted stock | |||
| Stock-Based Compensation | |||
| Weighted-average amortization period | 0 years | ||
| 2016 Plan | |||
| Stock-Based Compensation | |||
| Number of common stock authorized | 291,667 | ||
| Common shares were available for future grants | 147,041 | ||
| 2019 Plan | |||
| Stock-Based Compensation | |||
| Number of common stock authorized | 6,018,136 | ||
| Common shares were available for future grants | 1,869,770 | ||
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- Definition Stock options granted for future services to consultant. No definition available.
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- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Number of shares authorized for issuance under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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