Stock-Based Payments - Summary of Status of Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands |
6 Months Ended | 12 Months Ended |
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Jun. 30, 2022 |
Dec. 31, 2021 |
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| Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | ||
| Outstanding at beginning of year (in shares) | 6,657,268 | |
| Granted (in shares) | 1,108,800 | |
| Exercised (in shares) | (37,700) | |
| Cancelled (in shares) | (79,190) | |
| Outstanding at end of period (in shares) | 7,649,178 | 6,657,268 |
| Exercisable (in shares) | 4,250,393 | |
| Outstanding at beginning of year (in dollars per share) | $ 8.27 | |
| Granted (in dollars per share) | 1.48 | |
| Exercised (in dollars per share) | 0.04 | |
| Cancelled (in dollars per share) | 10.58 | |
| Outstanding at end of period (in dollars per share) | 7.30 | $ 8.27 |
| Exercisable (in dollars per share) | $ 8.94 | |
| Remaining Contractual Life, Outstanding | 6 years 8 months 12 days | 7 years 2 months 12 days |
| Remaining Contractual Life, Exercisable | 5 years 2 months 12 days | |
| Aggregate Intrinsic Value, Outstanding | $ 29 | $ 494 |
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- References No definition available.
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Weighted average price of options that were either forfeited or expired. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the 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 Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the 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 Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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