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INCOME TAXES - Deferred tax (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax liabilities: |  |
Property, plant and equipment | $ (36,453) | $ (38,349)
Deferred tax liabilities | (36,453) | (38,349)
Deferred tax assets: |  |
Federal loss carryovers and credits | 4,508 | 2,139
State loss carryovers and credits | 2,126 | 951
Capitalized research and development | 2,567 |
Other | 1,098 | 133
Total deferred tax assets | 10,299 | 3,223
Overall net deferred tax liabilities | $ (26,154) | $ (35,126)

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