CUSTOMER AND SUPPLIER CONCENTRATION - SUPPLIER CONCENTRATION RISK (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($) item	Jun. 30, 2021 USD ($)
Concentration Risk
Number of Suppliers | item	2
Cost of goods sold | Supplier concentration risk | Supplier one
Concentration Risk
Concentration Risk, Percentage	39.50%	35.80%
Accounts payable (prepayment)	$ 10,894	$ 611
Cost of goods sold | Supplier concentration risk | Supplier two
Concentration Risk
Concentration Risk, Percentage	17.60%	23.80%
Accounts payable (prepayment)	$ 409	$ 5,002