LONG-TERM BORROWINGS - Summary of Long-term Borrowings (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) Intallment	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Long-Term Borrowings [Abstract]
Long-term debt	$ 19,138		$ 19,138
Less: Current portion	(3,239)		(3,239)		$ (2,322)
Long-term Borrowings	15,899		15,899		18,687
Interest costs incurred	181	$ 244	370	$ 502
Interest expense, long-term debt			370	442
Capitalized interest charged as other long-term assets			0	$ 60
China Merchants Bank
Long-Term Borrowings [Abstract]
Long-term debt	13,914		$ 13,914		15,265
Number of installments for loan repayable | Intallment			120
Line of credit facility, interest rate during period			3.95%
Bank of China
Long-Term Borrowings [Abstract]
Long-term debt	$ 5,224		$ 5,224		$ 5,744