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CONTINGENCIES (Details) |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 01, 2021 KRW (₩) | Oct. 01, 2021 USD ($) | Sep. 15, 2021 USD ($) | Apr. 08, 2020 KRW (₩) | Apr. 08, 2020 USD ($) | Mar. 27, 2019 KRW (₩) | Mar. 27, 2019 USD ($) | Mar. 31, 2022 KRW (₩) | Mar. 31, 2022 USD ($) | Mar. 31, 2022 USD ($) | Jun. 30, 2022 KRW (₩) | Jun. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Oct. 01, 2021 USD ($) | Sep. 30, 2021 USD ($)
LGE |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset impairment charges |  |  |  |  |  |  |  |  |  | $ 800,000 |  |  |  |  |
Long-term deposits |  |  |  | ₩ 5,916,845,454 | $ 5,000,000 |  |  |  |  |  |  |  |  |  |
Marquardt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued Royalties |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000
Loss Contingency, Damages Sought, Value |  |  | $ 138,000 |  |  |  |  |  |  |  |  |  |  |  |
Samsung |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset impairment charges |  |  |  |  |  |  |  |  | $ 1,300,000 | $ 1,400,000 |  |  |  |  |
Reimbursed penalties |  |  |  |  |  |  |  | ₩ 6,088,855,388 | $ 5,000,000 |  |  |  |  |  |
Unrecognized tax benefits, income tax penalties accrued |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |  |
Samsung | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reimbursed penalties |  |  |  |  |  |  |  |  |  |  | ₩ 608,885,000 | $ 500,000 |  |  |
Samsung | Withholding taxes on royalty payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Withholding Taxes and Penalties Cancelled | ₩ 6,186,218,586 | $ 5,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Withholding Taxes And Penalties, Upheld | ₩ 1,655,105,584 |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,400,000 |
Loss contingency, estimate of possible loss |  |  |  |  |  | ₩ 7,841,324,165 | $ 6,900,000 |  |  |  |  |  |  |  |
Litigation settlement |  |  |  |  |  |  | $ 871,454 |  |  |  |  |  |  |  |

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