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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
financial_institution
Dec. 31, 2020
USD ($)
Accounts Receivable    
Allowance for doubtful accounts | $ $ 0 $ 0
Revenue Recognition    
Contracted exclusivity period 2 years  
Sales-based royalties, period in which payment is due 30 days  
Minimum    
Property, Plant and Equipment    
Useful lives 2 years  
Revenue Recognition    
Amortization period 1 year  
Maximum    
Property, Plant and Equipment    
Useful lives 5 years  
Revenue Recognition    
Amortization period 4 years  
Letter of Credit    
Restricted Cash    
Letter of credit annual step down | $ $ 50 $ 50
United States    
Concentration Risks, Types, No Concentration Percentage    
Number of financial institutions 1  
Switzerland | Subsidiaries    
Concentration Risks, Types, No Concentration Percentage    
Number of financial institutions 1  
South Korea    
Concentration Risks, Types, No Concentration Percentage    
Number of financial institutions 1