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Business Description, Basis of Presentation and Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 75 Months Ended |
--- | --- | --- | --- | ---
Jan. 31, 2022 | Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2022 | Dec. 31, 2021
Loss Contingencies [Line Items] |  |  |  |  |
Cash and cash equivalents |  | $ 1,422 |  | $ 1,422 | $ 1,071
Working capital |  | 19,339 |  | 19,339 |
Net cash used in operating activities |  | (1,043) | $ (13) |  |
Increase of cash used in operating activities |  | (1,030) |  |  |
Common stock and additional paid-in capital [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Issue of common stock and warrants | $ 2,000 | $ 2,000 | $ 0 |  |
Litigation for Intellectual Property Infringement [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Litigation settlement expense |  |  |  | $ 28,345 |

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