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LONG-TERM DEBT - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Debt Disclosure [Abstract] |  |  |
Interest expense | $ 43 | $ 14 | $ 45

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- References No definition available. + Details
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X
- Definition The net amount of nonoperating interest income (expense). + References No definition available. + Details
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