v3.21.2

Stockholders' Equity - Stock-Based Compensation Narratives (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
May 31, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Aug. 31, 2021
Stockholders Equity [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  | $ 819 | $ 470 | $ 2,152 | $ 496 |
Shares authorized to repurchase |  |  |  |  |  | 15,000,000
Repurchase and retirement of common stock |  | $ 450 |  | $ 450 |  |
Repurchase and retirement of common stock (in shares) |  | 250,000 |  | 250,000 |  |
Stock Compensation Plan |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |
Options, expiry period |  |  |  | 10 years |  |
Options, vesting period |  |  |  | 1 year |  |
XpresTest 2020 Plan [Member] | RSUs |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |
Unrecognized stock-based compensation related to the awards |  | $ 14 |  | $ 14 |  |
Common stock repurchased | 7 |  |  |  |  |
Maximum | 2020 Plan [Member] |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |
Number of shares authorized |  |  | 5,000,000 |  | 5,000,000 |
Directors, Employees And Consultants | XpresTest 2020 Plan [Member] |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |
Number of shares authorized |  | 200 |  | 200 |  |
Percentage of shares authorized for issuance |  |  |  | 20.00% |  |

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