Equity Incentive Plans (Details) - Schedule of compensation expense related to its share-based compensation awards - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Total share-based compensation expense | $ 299 | $ 5 | $ 5 | $ 637 |
| Sales and marketing [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Total share-based compensation expense | 130 | 2 | 2 | 279 |
| Research and development [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Total share-based compensation expense | 3 | 3 | 61 | |
| General and administrative [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Total share-based compensation expense | $ 169 | $ 297 | ||