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Debt (Tables) | 12 Months Ended
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Dec. 31, 2021
Debt Disclosure [Abstract] |
Summary of Convertible Debentures | At December 31, 2020, convertible debentures consisted of the following:
(amounts in thousands) |  | 2021 |
6% Convertible debentures due December 31, 2023 |  | $ | 8,183 |
Accrued interest |  |  | 322 |
Total obligation |  |  | 8,505 |
Debt discount |  |  | (4,183 | )
Net |  | $ | 4,322 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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