LONG-TERM BORROWINGS - Summary of Long-term Borrowings (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) investor intallment installment	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Long-Term Borrowings [Abstract]
Long-term debt	$ 46,470		$ 46,470		$ 21,009
Less: Current portion	(6,717)		(6,717)		(2,322)
Long-term Borrowings	39,753		39,753		18,687
Long-term debt	46,470		46,470		21,009
Long-term debt, fair value	43,151		43,151		18,538
Interest costs incurred	276	$ 218	646	$ 720
Interest expense, long-term debt			646	660
Capitalized interest charged as other long-term assets			0	$ 60
China Merchants Bank
Long-Term Borrowings [Abstract]
Long-term debt	13,595		$ 13,595		15,265
Number of installments for loan repayable | intallment			120
Line of credit facility, interest rate during period			3.95%
Long-term debt	13,595		$ 13,595		15,265
Bank of China
Long-Term Borrowings [Abstract]
Long-term debt	5,015		$ 5,015		5,744
Number of installments for loan repayable | installment			6
Line of credit facility, interest rate during period			2.60%
Long-term debt	5,015		$ 5,015		5,744
Bank of Shanghai
Long-Term Borrowings [Abstract]
Long-term debt	13,930		$ 13,930		0
Line of credit facility, interest rate during period			2.85%
Long-term debt	13,930		$ 13,930		0
Citic Bank
Long-Term Borrowings [Abstract]
Long-term debt	13,930		$ 13,930		0
Number of installments for loan repayable | investor			4
Line of credit facility, interest rate during period			3.40%
Long-term debt	$ 13,930		$ 13,930		$ 0