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CONTINGENCIES - NARRATIVE (Details)
Mar. 27, 2019
USD ($)
Mar. 27, 2019
KRW (₩)
Mar. 31, 2019
USD ($)
Other assets      
Loss Contingencies [Line Items]      
Deposit asset     $ 6,900,000
Samsung vs. Immersion | Withholding taxes on royalty payments      
Loss Contingencies [Line Items]      
Litigation, amount awarded to other party | ₩   ₩ 7,841,324,165  
Litigation, arbitration costs $ 871,454