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COMMITMENTS AND CONTINGENCIES - Defined Contribution Pension Plan (Details) - USD ($) | 2 Months Ended | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
COMMITMENTS AND CONTINGENCIES. |  |  |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount |  | $ 47,000 | $ 66,000 | $ 336,000
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 50.00% |  |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 4.00% |  |  |

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