Certain Balance Sheet Items (Details) - Schedule of summarizes inventories - USD ($) $ in Thousands |
Sep. 30, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|---|
| Schedule of summarizes inventories [Abstract] | |||
| Raw materials | $ 108 | $ 119 | $ 92 |
| Work in process | 149 | 167 | 137 |
| Finished goods | 244 | 272 | 524 |
| Total | $ 501 | $ 558 | $ 753 |