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INCOME TAXES - Components of Provision for Income Taxes (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Current expense:      
Federal $ 0 $ 0 $ 0
State 160 223 181
Foreign 111 150 59
Total current tax expense 271 373 240
Deferred tax benefit:      
Federal 0 0 0
State 0 0 0
Foreign (2) (6) (11)
Total deferred tax benefit (2) (6) (11)
Total tax expense $ 269 $ 367 $ 229