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Income Taxes (Q1) (Details) - USD ($) $ in Millions | Feb. 22, 2022 | Apr. 12, 2021 | Dec. 31, 2021 | Dec. 31, 2020
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Operating Loss Carryforwards [Line Items] |  |  |  |
Possible additional NOLs for five years resulting from Net Unrealized Built-in Gain rules |  |  | $ 1.1 |
Proceeds from sale of NOLs, gross | $ 2.5 | $ 1.5 |  |
Net proceeds from sale of NOLs | 2.3 | 1.4 |  |
Loss on sale of NOLs | $ 0.1 | $ 0.1 |  |
Federal |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforwards, prior to write down |  |  | 281.0 |
Net operating loss carryforwards |  |  | 112.0 | $ 264.0
Write down of NOLs set to expire unutilized |  |  | 169.0 |
State | New Jersey |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforwards |  |  | 97.0 | 99.0
State | California |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforwards |  |  | 70.0 | 70.0
State | New York |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforwards |  |  | $ 13.0 | $ 13.0

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