Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Statement of Comprehensive Income [Abstract] | ||||
| Net loss | $ (7,653) | $ (4,239) | $ (5,779) | $ (4,281) |
| Other comprehensive (loss) income: | ||||
| Foreign currency translation adjustment | 4 | (31) | (22) | 47 |
| Total other comprehensive (loss) income | 4 | (31) | (22) | 47 |
| Comprehensive loss | $ (7,649) | $ (4,270) | $ (5,801) | $ (4,234) |