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Equity - Consultant Stock Plan (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Compensation expense | $ 42 | $ 410
Consultant Stock Plan |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Reserved but unissued shares under the Consultant Plan at January 1 | 211 |
Stock grants | (4) |
Reserved but unissued shares under the Consultant Plan at Period End | 207 |
Compensation expense | $ 7 | $ 9
Weighted Average Value Per Share | $ 1.93 | $ 2.33
Maximum increase in available number of authorized shares as a percentage of new shares issued | 1.00% |

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