Annual report pursuant to Section 13 and 15(d)

CONCENTRATIONS - Supplier Concentrations (Details)

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CONCENTRATIONS - Supplier Concentrations (Details) - Cost of goods sold - Supplier Concentrations
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Supplier B    
CONCENTRATIONS    
Concentration risk (as a percent)   15.51%
Supplier D    
CONCENTRATIONS    
Concentration risk (as a percent)   16.32%
Supplier E    
CONCENTRATIONS    
Concentration risk (as a percent) 42.36%  
Top Four Suppliers    
CONCENTRATIONS    
Concentration risk (as a percent) 42.36% 31.83%