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Stock-based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  | 9 Months Ended
--- | --- | --- | --- | ---
Aug. 03, 2022 | Mar. 30, 2021 | Mar. 30, 2021 | Jun. 01, 2018 | Sep. 30, 2022 | Sep. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Options to purchase, Granted (in shares) |  |  |  |  | 279,500 |
Options cancelled to purchase common stock |  |  |  |  | 95,625 |
Stock-based compensation expense |  |  |  |  | $ 384 | $ 313
Options, Granted |  |  |  |  | 279,500 |
Remaining shares are subject to a vesting |  |  |  |  | 980,163 |
2016 Stock Option Plan [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Options to purchase, Granted (in shares) |  |  |  |  | 144,500 |
Options, Granted |  |  |  |  | 144,500 |
David Ludwig And Tom Ludwig [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Restricted common stock granted |  |  |  | 600,000 |  |
Restricted common stock granted |  |  |  | 600,000 |  |
Common Stock Options [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  | $ 300 |
Unrecognized stock-based compensation |  |  |  |  | $ 1,000 |
Unrecognized stock-based compensation, Period for recognition |  |  |  |  | 2 years 9 months 18 days |
Restricted Stock [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  | $ 38,700 |
Unrecognized stock-based compensation expense |  |  |  |  | $ 34,400 |
Restricted Stock [Member] | David Ludwig And Tom Ludwig [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Shares restriction term of service |  |  |  | 5 years |  |
Weighted average grant date fair value |  |  |  |  | $ 0.43 |
Restricted Stock [Member] | Scott West [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Restricted common stock granted |  |  | 25,000 |  |  |
Shares restriction term of service |  | 2 years |  |  |  |
Restricted common stock granted |  |  | 25,000 |  |  |
Equity Incentive Plan [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Common stock shares authorized for issuance under plan |  |  |  |  | 3,500,000 |
Employees [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Options to purchase, Granted (in shares) |  |  |  |  | 279,500 |
Options cancelled to purchase common stock |  |  |  |  | 55,625 |
Options, Granted |  |  |  |  | 279,500 |
Non-Employee Directors [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Options cancelled to purchase common stock |  |  |  |  | 40,000 |
Non-Executive Directors [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Restricted common stock granted | 115,000 |  |  |  |  |
Restricted common stock granted | 115,000 |  |  |  |  |
Non-Executive Directors [Member] | Restricted Stock [Member] |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |
Options to purchase, Granted (in shares) |  |  |  |  | 40,000 |
Stock-based compensation expense |  |  |  |  | $ 92,800 |
Weighted average grant date fair value | $ 1.58 |  |  |  |  |
Unrecognized stock-based compensation expense |  |  |  |  | $ 88,900 |
Options, Granted |  |  |  |  | 40,000 |
Number of Shares vested in period |  |  |  |  | 75,000 |

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