LONG-TERM BORROWINGS (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) Intallment Loan	Dec. 31, 2020 USD ($)
Long-Term Borrowings [Abstract]
Long-term debt	$ 25,367
Less: Current portion	(2,410)	$ (1,591)
Long-term Borrowings	22,957	17,979
Principal Payments of Long-Term Loan [Abstract]
2022	2,410
2023	2,491
2024	7,436
2025	1,959
2026 and onwards	11,071
Long-term debt	25,367
Interest expense related to long-term borrowings incurred	1,040	72
Interest expense charged to long-term borrowings	65
Capitalized interest charged as other long-term assets	975	72
China Merchants Bank [Member]
Long-Term Borrowings [Abstract]
Long-term debt	$ 18,390	19,570
Number of installments for loan repayable | Intallment	120
Last installment due date	Nov. 30, 2030
Annual interest rate	4.65%
Principal Payments of Long-Term Loan [Abstract]
Long-term debt	$ 18,390	19,570
Bank of China [Member]
Long-Term Borrowings [Abstract]
Long-term debt	$ 6,977	0
Number of loans | Loan	2
Principal Payments of Long-Term Loan [Abstract]
Long-term debt	$ 6,977	$ 0
Bank of China [Member] | Loan 1 [Member]
Long-Term Borrowings [Abstract]
Number of installments for loan repayable | Intallment	6
Last installment due date	Jun. 30, 2024
Annual interest rate	2.60%
Bank of China [Member] | Loan 2 [Member]
Long-Term Borrowings [Abstract]
Number of installments for loan repayable | Intallment	6
Last installment due date	Sep. 30, 2024
Annual interest rate	2.60%