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Income Taxes - Narrative (Details) - USD ($) $ in Millions | Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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Operating Loss Carryforwards [Line Items] |  |  |
Operating loss carry-forwards |  | $ 9.6 | $ 7.1
Operating loss, subject to expiration | $ 37.5 |  |
U.S. Federal, State and Local tax authorities |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Deferred tax assets, operating loss carry-forwards |  | 125.4 |
Deferred tax assets, operating loss carryforwards, portion available after application of IRC Section 382 limitations |  | 71.0 |
State and Local Jurisdiction |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Deferred tax assets, operating loss carry-forwards |  | $ 77.2 |

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