Stockholders' Equity (Deficit) - Summary of Stock Option Activity (Detail) - 2014 EIP and Inducement Plan - USD ($) $ / shares in Units, $ in Thousands |
6 Months Ended | 12 Months Ended |
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Jun. 30, 2024 |
Dec. 31, 2023 |
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Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
Outstanding, Shares, beginning balance | 428,786 | |
Granted, Shares | 16,500 | |
Exercised, Shares | 0 | |
Forfeited or expired, Shares | (121,311) | |
Outstanding, Shares, ending balance | 323,975 | 428,786 |
Outstanding, Weighted Average Exercise Price, beginning balance | $ 290.75 | |
Granted, Weighted Average Exercise Price | 11 | |
Exercised, Weighted Average Exercise Price | 0 | |
Forfeited or expired, Weighted Average Exercise price | 357.74 | |
Outstanding, Weighted Average Exercise Price, ending balance | $ 251.42 | $ 290.75 |
Outstanding, Weighted Average Remaining Contractual Term | 7 years | 6 years 6 months |
Aggregate intrinsic value | $ 0 | $ 0 |
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. 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 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://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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