XML 36 R27.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Stockholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Equity [Abstract] |
Schedule of Shares of Common Stock Reserved for Future Issuance | The following table lists the Black-Scholes option-pricing model assumptions used to calculate the fair value of employee and director stock options, as well as the resulting grant-date fair value:
|  | Year Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Average risk-free interest rate |  |  | 4.0 | % |  |  | 2.9 | % |  |  | 1.2 | %
Dividend yield |  |  | 0.0 | % |  |  | 0.0 | % |  |  | 0.0 | %
Average volatility factor |  |  | 88.4 | % |  |  | 77.9 | % |  |  | 63.8 | %
Weighted-average expected life |  | 5.1 years |  |  | 5.6 years |  |  | 5.5 years |
Weighted-average grant-date fair value of options granted |  | $ | 0.37 |  |  | $ | 3.18 |  |  | $ | 8.07 |

X
- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration