Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)

v3.21.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
$ in Thousands
 9 Months Ended
Sep. 30, 2021
USD ($)
financial_institution
Dec. 31, 2020
USD ($)
Restricted Cash    
Restricted cash | $ $ 55 $ 105
Accounts Receivable    
Allowance for doubtful accounts | $ $ 0 $ 0
Minimum    
Property and Equipment    
Useful life (in years) 2 years  
Revenue Recognition    
Amortization period 12 months  
Completed design license term 2 years  
Maximum    
Property and Equipment    
Useful life (in years) 5 years  
Revenue Recognition    
Amortization period 18 months  
Sales-based royalties, period in which payment is due 30 days  
Letter of Credit    
Restricted Cash    
Letter of credit annual step down | $ $ 50  
United States    
Concentration Risks, Types, No Concentration Percentage    
Number of financial institutions where the company holds checking deposits | financial_institution 1  
Switzerland | Subsidiaries    
Concentration Risks, Types, No Concentration Percentage    
Number of financial institutions where the company holds checking deposits | financial_institution 1  
South Korea    
Concentration Risks, Types, No Concentration Percentage    
Number of financial institutions where the company holds checking deposits | financial_institution 1