The Company and Summary of Significant Accounting Policies - Prepaid expenses and other current assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| The Company and Summary of Significant Accounting Policies | ||
| Prepaid inventory | $ 66 | $ 183 |
| Prepaid expense | 901 | 525 |
| 2021 Regulation A deferred offering and public listing costs | 215 | |
| Research and development tax credit | 376 | 376 |
| Other current assets | 6 | |
| Total | $ 1,349 | $ 1,299 |
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for 2021 regulation a deferred offering and public listing costs. No definition available.
|
| X | ||||||||||
- Definition Amount of asset related to research and development tax credit. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of current assets classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for other costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of consideration paid in advance for supplies that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|