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OPERATING LEASES - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Operating Leases [Line Items]      
Operating lease not yet commenced description As of December 31, 2019, the Company did not have additional operating leases that have not yet commenced.    
Operating lease expenses $ 1,900    
Operating lease ROU assets 2,860    
Operating lease liability 2,959    
Operating lease liability, current 1,595    
Rent expense   $ 2,100 $ 1,900
Cost of Net Sales      
Operating Leases [Line Items]      
Operating lease expenses 500    
Operating Expense      
Operating Leases [Line Items]      
Operating lease expenses $ 1,400