75000 - Document - Cover Page
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75010 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited)
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75020 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)
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75030 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)
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75040 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited)
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75050 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited)
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75060 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
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995455 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies
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995465 - Disclosure - Discontinued Operations
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995475 - Disclosure - Inventories
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995485 - Disclosure - Property, Plant and Equipment
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995495 - Disclosure - Intangible Assets
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995505 - Disclosure - Leases
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995515 - Disclosure - Accrued Expenses
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995525 - Disclosure - Derivative Financial Instruments
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995535 - Disclosure - Fair Value Measurements
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995545 - Disclosure - Accrued Severance Benefits
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995555 - Disclosure - Borrowings
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995565 - Disclosure - Other Charges
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995575 - Disclosure - Foreign Currency Loss, Net
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995585 - Disclosure - Income Taxes
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995595 - Disclosure - Geographic and Other Information
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995605 - Disclosure - Accumulated Other Comprehensive Loss
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995615 - Disclosure - Earnings (Loss) Per Share
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995625 - Disclosure - Commitments and Contingencies
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995635 - Disclosure - Stockholders' Equity
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995645 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Policies)
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995655 - Disclosure - Discontinued Operations (Tables)
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995665 - Disclosure - Inventories (Tables)
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995675 - Disclosure - Property, Plant and Equipment (Tables)
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995685 - Disclosure - Intangible Assets (Tables)
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995695 - Disclosure - Leases (Tables)
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995705 - Disclosure - Accrued Expenses (Tables)
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995715 - Disclosure - Derivative Financial Instruments (Tables)
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995725 - Disclosure - Fair Value Measurements (Tables)
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995735 - Disclosure - Borrowings (Tables)
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995745 - Disclosure - Accrued Severance Benefits (Tables)
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995755 - Disclosure - Geographic and Other Information (Tables)
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995765 - Disclosure - Accumulated Other Comprehensive Loss (Tables)
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995775 - Disclosure - Earnings (Loss) Per Share (Tables)
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995785 - Disclosure - Discontinued Operations - Schedule of Results From Discontinued Operations (Detail)
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995785 - Disclosure - Discontinued Operations - Schedule of Results From Discontinued Operations (Detail) [Default]
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995795 - Disclosure - Discontinued Operations - Schedule Of Disposal Group Including Discontinued Operation Balance Sheet Disclosures (Details)
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995805 - Disclosure - Discontinued Operations - Schedule of Cash Flow Information Related to Discontinued Operation (Detail)
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995815 - Disclosure - Discontinued Operations - Schedule of Discontinued Operation Income Loss From Discontinued Operation Disclosures (Details)
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995815 - Disclosure - Discontinued Operations - Schedule of Discontinued Operation Income Loss From Discontinued Operation Disclosures (Details) [Default]
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995825 - Disclosure - Discontinued Operations - Additional Information (Details)
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995835 - Disclosure - Inventories - Summary of Inventories (Detail)
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995845 - Disclosure - Inventories - Changes in Inventory Reserve (Detail)
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995855 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail)
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995865 - Disclosure - Property, Plant and Equipment - Additional Information (Detail)
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995875 - Disclosure - Intangible Assets - Summary of Intangible Assets (Detail)
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995885 - Disclosure - Intangible Assets - Additional Information (Detail)
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995895 - Disclosure - Leases - Supplemental Balance Sheet (Detail)
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995905 - Disclosure - Leases - Components of Lease Cost (Detail)
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995915 - Disclosure - Leases - Other Lease Information (Detail)
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995925 - Disclosure - Leases - Aggregate Future Lease Payment (Detail)
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995935 - Disclosure - Leases - Aggregate Future Lease Payment (Detail) 2
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995945 - Disclosure - Leases - Additional Information (Detail)
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995955 - Disclosure - Accrued Expenses - Summary of Accrued Expenses (Detail)
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995965 - Disclosure - Derivative Financial Instruments - Details of Zero Cost Collar Contracts (Detail)
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995975 - Disclosure - Derivative Financial Instruments - Fair Values of Outstanding Zero Cost Collar and Forward Contracts Recorded as Assets and Liabilities (Detail)
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995985 - Disclosure - Derivative Financial Instruments - Offsetting of Derivative Assets and Liabilities (Detail)
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995995 - Disclosure - Derivative Financial Instruments - Impact of Derivative Instruments on Consolidated Statement of Operations (Detail)
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995995 - Disclosure - Derivative Financial Instruments - Impact of Derivative Instruments on Consolidated Statement of Operations (Detail) [Default]
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996005 - Disclosure - Derivative Financial Instruments - Additional Information (Detail)
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996015 - Disclosure - Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)
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996025 - Disclosure - Accrued Severance Benefits - Changes in Accrued Severance Benefits (Detail)
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996035 - Disclosure - Accrued Severance Benefits - Future Benefits Payments to Employees (Detail)
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996045 - Disclosure - Accrued Severance Benefits - Additional Information (Detail)
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996055 - Disclosure - Borrowings - Schedule of Borrowings (Details)
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996065 - Disclosure - Borrowings - Additional Information (Detail)
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996075 - Disclosure - Borrowings - Summary Of Principal Repayments (Details)
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996085 - Disclosure - Other Charges - Additional Information (Detail)
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996095 - Disclosure - Foreign Currency Loss, Net - Additional Information (Detail)
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996105 - Disclosure - Income Taxes - Additional Information (Detail)
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996115 - Disclosure - Geographic and Other Information - Schedule of Operating Segment (Detail)
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996125 - Disclosure - Geographic and Other Information - Net Sales by Region, Based on Location of Products are Billed (Detail)
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996135 - Disclosure - Geographic and Other Information - Additional Information (Detail)
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996145 - Disclosure - Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Detail)
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996155 - Disclosure - Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Detail)
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996165 - Disclosure - Earnings (Loss) Per Share - Schedule of Computation of Basic and Diluted Loss Per Common Share (Detail)
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996175 - Disclosure - Earnings (Loss) Per Share - Schedule of Antidilutive Securities Excluded from the Computation of Loss Per Common Share (Detail)
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996185 - Disclosure - Commitments and Contingencies - Additional Information (Detail)
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996195 - Disclosure - Stockholders' Equity - Additional Information (Detail)
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Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Cash flows from financing activities
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Foreign Currency Translation Adjustments [Member]
Early termination and other charges.
Early Termination And Other Charges
Early termination and other charges
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Fair Values of Outstanding Zero Cost Collar and Forward Contracts Recorded as Assets and Liabilities
Gross Profit
Gross profit
Total gross profit
Postemployment benefits severance payments.
Postemployment Benefits Severance Payments
Severance payments
Other comprehensive income loss cash flow hedge gain loss after reclassifications and tax.
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassifications and Tax
Derivative adjustments
Schedule of Accrued Liabilities [Table Text Block]
Summary of Accrued Expenses
Operating Lease, Liability
Present value of future payments
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Income (Loss) from discontinued operations, net of tax
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax
Foreign currency translation adjustments
Discontinued operation.
Discontinued Operation [Line Items]
Debt Instrument, Basis Spread on Variable Rate
Debt instrument, basis spread on variable rate
Commitments and Contingencies
Commitments and contingencies (Note 18)
Weighted Average Number of Shares Outstanding, Diluted
Diluted
Diluted weighted average common stock outstanding
Other Receivables, Net, Current
Other receivables
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Stock-based compensation
Minimum [Member]
Minimum [Member]
Other General Expense
Other charges
Debt Instrument, Interest Rate, Effective Percentage
Debt instrument, interest rate, effective percentage
Finance Lease, Liability, to be Paid, Year Two
Finance Leases, 2027
Fair Value, Measurements, Recurring [Member]
Fair Value, Measurements, Recurring [Member]
Offsetting Assets Liabilities [Table Text Block]
Offsetting Assets Liabilities [Table Text Block]
Offsetting of Derivative Assets and Liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Payments for Hedge, Investing Activities
Payment of hedge collateral
Common Stock, Shares, Issued
Common stock, shares issued
Issuance of common stock, Shares
Segment Reporting [Line Items]
Segment Reporting Information [Line Items]
Debt Instrument, Face Amount
Debt instrument, face Amount
Income Tax Expense (Benefit)
Income tax expense (benefit)
Income tax benefit, Amount
Income tax benefit, net
Property, Plant and Equipment [Member]
Property, Plant and Equipment, Net [Member]
Schedule of Costs of Retirement Plans [Table Text Block]
Changes in Accrued Severance Benefits
Counterparty Name [Domain]
Counterparty Name [Domain]
Postemployment Benefits, Period Expense
Provision for severance benefits
Schedule of Expected Benefit Payments [Table Text Block]
Future Benefits Payments to Employees
Operating Segments [Member]
Operating Segments [Member]
Intangible Asset, Finite-Lived, Class [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Non Cash Investing Activities Dicontinued Operation [Abstract]
Investing activities:
Accrued Income Taxes, Current
Accrued income taxes
Zero Cost Collar Four
Zero Cost Collar Four [Member]
Zero Cost Collar Four [Member]
Cost of Goods and Services Sold
Cost of sales
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Less: Imported interest
Increase (Decrease) in Other Current Liabilities
Other current liabilities
Property, Plant, and Equipment [Text Block]
Property, Plant and Equipment
Geographic Concentration Risk [Member]
Geographic Concentration Risk [Member]
Percentage of Debt Instrument Basis Spread on Variable Rate
Percentage of debt instrument basis spread on variable rate.
Debt instrument, basis spread on variable rate
Payment for (Proceeds from) Other Investing Activity
Others, net
Increase (Decrease) in Other Current Assets
Other current assets
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Effect of exchange rates on cash and cash equivalents
Schedule of Long-Term Debt Instruments [Table]
Disposal Group, Including Discontinued Operation, Inventory, Current
Inventories, net
Postemployment benefit payments year four.
Post employment Benefit Payments Year Four
2030
Income Statement [Abstract]
Inventory reserve charged to costs of sales.
Inventory reserve charged to costs of sales
Inventory reserve charged to costs of sales
Disposal Group, Including Discontinued Operation, Revenue
Net sales
Net sales
Comprehensive Income (Loss) Note [Text Block]
Accumulated Other Comprehensive Loss
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Two
2027
Top Customer One [Member]
Top Customer One [Member]
Top Customer One [Member]
Land
Land
Schedule of discontinued operation income loss from discontinued operation disclosures.
Schedule Of Discontinued Operation Income Loss From Discontinued Operation Disclosures
Finance Lease Right-of-Use Assets [Member]
Lease, Cost [Table Text Block]
Lease, Cost
Derivative Asset, Fair Value, Amount Not Offset Against Collateral
Gross amounts of recognized assets
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Earnings Per Share, Basic
Basic
Basic earnings (loss) per common share
Document Period End Date
Finance Lease, Interest Expense
Interest on lease liabilities
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Accrued Expenses
Intangible Asset, Finite-Lived, after Accumulated Amortization
Intangible assets, net
Intangible asset, Net amount
Intangible asset, Net amount
Payments to Acquire Property, Plant, and Equipment
Purchase of property, plant and equipment
Debt Instrument [Line Items]
Common Stock, Shares Authorized
Common stock, shares authorized
Intercompany Loan
Intercompany Loan
Intercompany loan balances
Foreign Currency Disclosure [Text Block]
Foreign Currency Loss, Net
Statement of Stockholders' Equity [Abstract]
Threshold amount of additional cash collateral recorded as hedge collateral.
Threshold Amount Of Additional Cash Collateral Recorded As Hedge Collateral
Threshold amount of additional cash collateral
Finance Lease, Right-of-Use Asset, after Accumulated Amortization
Finance lease
Inventory valuation reserves changes.
Inventory Valuation Reserves Changes
Change in reserve
Discontinued Operation, Tax Effect of Discontinued Operation
Income tax expense, net
Increase (Decrease) in Income Taxes Payable
Accrued income taxes
Entity Address, Country
Retirement age of employees.
Retirement Age Of Employees
Retirement age of employees
Zero cost collar and forward contracts.
Zero Cost Collar And Forward Contracts [Member]
Zero Cost Collar and Forward Contracts [Member]
Derivative Liability, Collateral, Right to Reclaim Cash, Offset
Gross amounts offset in the balance sheets
Cumulative contributions to national pension fund.
Cumulative Contributions To National Pension Fund
The National Pension Fund
Assets
Total assets
Title of 12(b) Security
Schedule of Capitalization, Long-Term Debt [Line Items]
Payments for Repurchase of Common Stock
Acquisition of treasury stock
At the Market Offering [Member]
At the market offering.
At the Market Offering
Sale of previously reserved inventory.
Sale of previously reserved inventory
Sale of previously reserved inventory
Cumulative contributions to severance insurance deposit accounts.
Less: Cumulative Contributions To Severance Insurance Deposit Accounts
Less: Cumulative contributions to severance insurance deposit accounts
Finance Lease, Liability, to be Paid, Year Three
Finance Leases, 2028
Derivative, Notional Amount
Total notional amount
Derivative, Notional Amount
Customer Concentration Risk [Member]
Customer Concentration Risk [Member]
Operating Lease, Payments
Operating cash flows from operating leases
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Interest Paid, Excluding Capitalized Interest, Operating Activities
Cash paid for interest on long-term borrowings
Term Loan due March Two Thousand Twenty Seven [Member]
Term loan due march two thousand twenty seven.
Term Loan due March 2027 [Member]
Foreign Currency Exchange Rate, Translation
Exchange rates using first base rate
Foreign currency exchange rate, translation
Subsidiary or Equity Method Investee, Sale of Stock, Type [Table]
Lessee, Operating Lease, Liability, to be Paid, Year One
Operating Leases, Remainder of 2026
Treasury Stock, Value, Acquired, Cost Method
Acquisition of treasury stock
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Non cash transaction amount of lease liabilities arising from obtaining right of use assets
Impairment charges
Disposal group including discontinued operation impairment charges.
Disposal Group Including Discontinued Operation Impairment Charges
Proceeds from settlement of hedge collateral
Proceeds from Hedge, Investing Activities
Proceeds from Guarantee Deposits
Proceeds from Guarantee Deposits
Collection of guarantee deposits
Schedule Of Principal Repayments [Table Text Block]
Schedule Of Principal Repayments [Table Text Block]
Schedule of Principal Repayments
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Other comprehensive income (loss)
Disposal group including discontinued operation impairment and other charges.
Impairment and other charges
Segment Reporting [Table Text Block]
Schedule of Operating Segments
Lessee, Operating Leases [Text Block]
Leases
Earnings Per Share, Diluted [Abstract]
Diluted loss per common share
Diluted earnings (loss) per common share
Balance beginning
Balance ending
Stockholders' Equity Attributable to Parent
Total stockholders' equity
Treasury Stock, Common [Member]
Treasury Stock [Member]
Entity Address, Address Line Two
Other Assets, Noncurrent
Other non-current assets
Income Tax Disclosure [Text Block]
Income Taxes
Leases Assets [Abstract]
Assets
Zero Cost Collar Three [Member]
Zero Cost Collar Three [Member]
Hedging Assets, Current
Hedge collateral (Note 8)
Earnings Per Share [Text Block]
Earnings (Loss) Per Share
Tabular disclosure of the components of accumulated other comprehensive income (loss).
Schedule of Components of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Accumulated Other Comprehensive Loss
Interest Income, Other
Interest income
Estimate of Fair Value Measurement [Member]
Estimate of Fair Value Measurement [Member]
Goodwill payment
Goodwill Payment On Certain Product
Goodwill payment on certain product.
Number of Reportable Segments
Segments
Inventory valuation reserves changes.
Inventory Valuation Reserves Changes [Abstract]
Change in reserve
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Assets:
Sales Revenue, Net [Member]
Net Sales [Member]
Basis of Accounting, Policy [Policy Text Block]
Basis of Presentation
Power Ic [Member]
Post employment benefit payments year two.
Post employment Benefit Payments Year Two
2028
Long-term Debt
Long-Term Debt
Total borrowings
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax
Amount of Gain (Loss) Recognized in AOCI on Derivatives
Finance Lease, Liability, Undiscounted Excess Amount
Less: Present value adjustment
Interest Income (Expense), Nonoperating, Net
Interest expense
Lease agreements remaining lease term for finance and operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.
Remaining Lease Term
Lease Agreements Remaining Term of Lease
Payments to Acquire Intangible Assets
Payment for intellectual property registration
Geographical [Domain]
Geographical [Domain]
Recent accounting pronouncements not yet adopted.
Recent Accounting Pronouncements Not Yet Adopted [Policy Text Block]
Recent Accounting Pronouncements Not Yet Adopted
Statistical Measurement [Axis]
Entity Interactive Data Current
Lessee, Operating Lease, Liability, to be Paid, Year Three
Operating Leases, 2028
Disposal Group, Including Discontinued Operation, Costs of Goods Sold
Cost of sales
Common Stock, Value, Issued
Common stock aggregate offering price
Common stock, $0.01 par value, 150,000,000 shares authorized, 58,318,707 shares issued and 36,510,111 outstanding at June 30, 2026 and 58,027,696 shares issued and 36,219,100 outstanding at December 31, 2025
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of Computation of Basic and Diluted Loss Per Common Share
Business Description and Basis of Presentation [Text Block]
Business
Taxes Payable, Current
Withholding tax attributable to intercompany interest income
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)
Gross profit
Gross profit
Inventory, Raw Materials, Gross
Raw materials
Liabilities
Total liabilities
Changes in inventory reserve.
Changes In Inventory Reserve [Abstract]
Basic earnings (loss) per common share.
Basic Earnings Loss Per Common Share [Abstract]
Basic earnings (loss) per common share
Cost of Revenue
Total cost of sales
Foreign Currency Transaction Gain (Loss), before Tax
Foreign currency gain (loss), net
Derivative Asset, Collateral, Obligation to Return Cash, Offset
Gross amounts offset in the balance sheets
Disposal Groups, Including Discontinued Operations [Table Text Block]
Schedule of Results From Discontinued Operations
Other Noncash Income (Expense)
Others, net
Product and Service [Axis]
Products and Services [Axis]
Changes In Inventory Reserves Table [Text Block]
Changes In Inventory Reserves [Table Text Block]
Changes in Inventory Reserve
Retained Earnings (Accumulated Deficit)
Retained earnings
Operating Lease Right Of Use Assets [Member]
Operating Lease Right Of Use Assets [Member]
Operating Expenses
Total operating expenses
Defined Benefit Plan, Plan Assets, Allocation [Table]
Revenues [Abstract]
Revenues:
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Discontinued operation table.
Discontinued Operation [Table]
Increase (Decrease) in Operating Capital [Abstract]
Changes in operating assets and liabilities
Lease liabilities noncurrent.
Lease Liabilities Noncurrent [Abstract]
Non-current
Provision for severance benefits discontinued operation.
Provision For Severance Benefits Discontinued Operation
Provision for severance benefits
Issuance of common stock, Shares
Stock Issued During Period, Shares, New Issues
Increase (Decrease) in Prepaid Expense
Prepaid expenses
Lease, Cost [Abstract]
Finance lease cost
Supplemental Unemployment Benefits, Severance Benefits
Accrued severance benefits, net
Accrued severance benefits, net
Schedule Of Cash Flow Information Related To Discontinued Operation [Line Items]
Significant non-cash operating activities:
Korea's mandatory retirement age.
Koreas mandatory retirement age
Korea's mandatory retirement age
Asia Pacific Other Than Korea [Member]
Asia Pacific Other Than Korea [Member]
Asia Pacific (Other Than Korea) [Member]
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Four
2029
Intangible Asset, Finite-Lived, Accumulated Amortization
Accumulated amortization
Weighted Average Discount Rate [Abstract]
Weighted average discount rate
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization
Less: accumulated depreciation
CAPEX Loans due June 2035 [Member]
CAPEX Loans Due June Two Thousand Thirty Five [Member]
CAPEX loans due june two thousand thirty five.
Derivative Liability
Net amounts of liabilities presented in the balance sheets
Operating Lease, Cost
Operating lease cost
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Long-term Debt [Text Block]
Borrowings
Fair Value Hierarchy and NAV [Axis]
Fair Value, Hierarchy [Axis]
Impairment charges.
Impairment Charges
Impairment charges
Property, Plant, and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses)
Foreign currency gain (loss), net
Operating Lease, Liability, Current
Operating lease liabilities
Operating
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Income (Loss) from continuing operations
Income (Loss) from continuing operations
Schedule of cashflow information related to discontinued operation.
Schedule Of Cash Flow Information Related To Discontinued Operation [Table Text Block]
Schedule of Cash Flow Information Related to Discontinued Operation
Customer [Domain]
Customer [Domain]
Derivative [Line Items]
Derivative [Line Items]
Liabilities and Equity
Total liabilities and stockholders' equity
Long-Term Debt, Unclassified [Abstract]
Lessee, Operating Lease, Liability, to be Paid, Year Two
Operating Leases, 2027
Research and Development Expense
Research and development expenses
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Net loss allocated to common stockholders
Finance Leases [Abstract]
Intangible Asset, Finite-Lived, Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Lessee, Lease, Description [Table]
Document Fiscal Period Focus
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Income (Loss) from discontinued operations before income tax expense,
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Schedule of Inventory, Current [Table Text Block]
Summary of Inventories
Property, Plant, and Equipment [Table]
Property, Plant and Equipment [Table]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Disposal Group, Including Discontinued Operation, Interest Income
Interest income
Employees eligible for severance benefits percentage.
Employees Eligible For Severance Benefits Percentage
Percentage of employees eligible for severance benefits
Schedule of Capitalization, Long-Term Debt [Table]
Discontinued operation.
Discontinued Operation [Abstract]
Intellectual Property [Member]
Intellectual Property Assets [Member]
Currency [Axis]
Sale of Stock [Axis]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Net decrease in cash and cash equivalents
Entity Current Reporting Status
Disposal Group, Including Discontinued Operation, Operating Expense
Total operating expenses
Operating expenses
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Schedule of Antidilutive Securities Excluded from the Computation of Loss Per Common Share
The disclosure of power analog solutions.
Power Analog Solutions [Member]
Power Analog Solutions [Member]
Document Transition Report
Commitments and Contingencies Disclosure [Abstract]
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Three
2028
Increase (Decrease) in Inventories
Inventories
Liabilities, Current [Abstract]
Current liabilities
Disposal Group Name [Axis]
Top Customer Two [Member]
Top Customer Two [Member]
Top Customer Two [Member]
Common Stock [Member]
Common Stock [Member]
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Derivative Financial Instruments
Statistical Measurement [Domain]
Long Term Debt Maturities Repayments Of Principal
Long Term Debt Maturities Repayments Of Principal
Lease Liabilities
Lease Liabilities
Total lease liabilities
Prepaid Expense, Current
Prepaid expenses
Disposal Group Including Discontinued Operation Other Income Loss
Disposal group including discontinued operation other income loss
Other income (loss), net
Intangible Asset, Finite-Lived, before Accumulated Amortization
Intangible asset, Gross amount
Other charges
Other Charges
Other charges.
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' equity
Weighted Average Number of Shares Outstanding, Basic
Basic weighted average common stock outstanding
Basic
Income (Loss) from Continuing Operations, Per Diluted Share
Continuing operations
Continuing operations
Property, Plant, and Equipment [Abstract]
Assets [Abstract]
Assets
Derivative, Collateral, Right to Reclaim Cash
Gross amounts not offset in the balance sheets, Cash collateral pledged
Entity Central Index Key
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Other Liabilities, Current
Other current liabilities
Consolidation Items [Axis]
Consolidation Items [Axis]
Current Fiscal Year End Date
Derivative [Table]
Derivative [Table]
Derivative Asset, Fair Value, Amount Offset Against Collateral
Net amount
Net amount
Increase (Decrease) in Accrued Liabilities
Accrued expenses
Document Quarterly Report
Derivative instruments gain loss reclassifications from accumulated oci to income estimated net amount to be transferred.
Derivative Instruments Gain Loss Reclassifications From Accumulated OCI To Income Estimated Net Amount To Be Transferred
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred
Debt Instrument, Maturity Date
Debt Instrument, Maturity Date
Stock based compensation discontinued operation.
Stock Based Compensation Discontinued Operation
Stock-based compensation
Intangible Asset and Goodwill [Table Text Block]
Summary of intangible assets
Disposal Group Name [Domain]
Fair Value, Inputs, Level 2 [Member]
Significant Other Observable Inputs (Level 2) [Member]
Net Cash Provided by (Used in) Operating Activities
Net cash used in operating activities
Entity Incorporation, State or Country Code
Derivative Liability, Noncurrent
Derivative liabilities, Non-current
Other non-current liabilities
Earnings Per Share, Diluted
Diluted
Diluted loss per common share
Cash Flow Hedging [Member]
Cash Flow Hedging [Member]
Operating Lease, Weighted Average Discount Rate, Percent
Operating leases
Net income (loss)
Net income (loss)
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table Text Block]
Net Sales by Region, Based on Location of Products are Billed
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Cash Paid For Amounts Included In Measurement Of Lease Liabilities [Abstract]
Cash paid for amounts included in the measurement of lease liabilities
Building and Building Improvements [Member]
Buildings and Related Structures [Member]
Zero Cost Collar One [Member]
Zero Cost Collar One [Member]
Zero Cost Collar One [Member]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Other comprehensive income (loss), net
Total other comprehensive income (loss)
Post employment benefit payments next twelve months.
Post employment Benefit Payments Next Twelve Months
2027
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Total comprehensive income (loss)
Long-Term Debt, Maturities, Repayments of Principal in Rolling after Year Five
2031 - 2035
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]
Business, Basis of Presentation and Significant Accounting Policies
Prepayments to suppliers as other current assets.
Prepayments To Suppliers As Other Current Assets
Prepayments to suppliers
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Equity Components [Axis]
Equity Components [Axis]
Statement of Cash Flows [Abstract]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy [Domain]
Income Tax Disclosure [Abstract]
Retirement Benefits [Abstract]
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis
Employee And Non Employee Stock Option [Member]
Employee And Non Employee Stock Option [Member]
Options [Member]
Fair Value Disclosures [Text Block]
Fair Value Measurements
Stock Issued During Period, Shares, Restricted Stock Award, Gross
Settlement of restricted stock units, Shares
Finance Lease, Liability, Noncurrent
Finance
Disposal Group Including Discontinued Operation Operating Expenses [Abstract]
Operating expenses:
Depreciation, Depletion and Amortization
Depreciation and amortization
Machinery and Equipment [Member]
Machinery and Equipment [Member]
Other Charges [Text Block]
Other charges.
Other Charges
Postemployment benefit payments year three.
Post employment Benefit Payments Year Three
2029
Derivative Contract [Domain]
Derivative Contract [Domain]
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Derivative Adjustments [Member]
Foreign Currency Transaction [Abstract]
Derivative Instruments, Gain (Loss) [Table Text Block]
Impact of Derivative Instruments on Consolidated Statement of Operations
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Outstanding units and warrants excluded from computation of diluted earnings (loss) per share/unit (in shares)
Schedule Of Disposal Group Including Discontinued Operation Balance Sheet Disclosures Table Text block
Schedule Of Disposal Group Including Discontinued Operation Balance Sheet Disclosures [Table Text Block]
Schedule Of Disposal Group Including Discontinued Operation Balance Sheet Disclosures
Counterparty Name [Axis]
Counterparty Name [Axis]
Increase (Decrease) in Other Accounts Payable
Other accounts payable
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Loss [Member]
Post Employment Benefit Payments Five Fiscal Years Thereafter.
Post employment Benefit Payments Five Fiscal Years Thereafter
2032 - 2037
OCI, before Reclassifications, Net of Tax, Attributable to Parent
Other comprehensive income (loss) before reclassifications
Deferred Income Tax Assets, Net
Deferred income taxes
Korean subsidiary member.
Korean Subsidiary [Member]
Increase (Decrease) in Accounts Payable, Trade
Accounts payable
Inventory, Net
Inventories, net
Inventories, net
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Liabilities:
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Taiwan [Member]
Other Inventory, in Transit, Gross
Materials in-transit
No definition available.
Schedule Of Future Lease Payments [Table Text Block]
Schedule of Future Lease Payments
Accrued Liabilities, Current
Accrued expenses
Accrued expenses
Accrued expenses (Note 7)
Current portion of long-term borrowings (Note 11)
Long-Term Debt, Current Maturities
Long-Term Debt, Current Maturities, Total
Less: current portion of long-term borrowings
Less: current portion of long-term borrowings
Customer [Axis]
Customer [Axis]
Inventory, Work in Process, Gross
Semi-finished goods and work-in-process
No definition available.
Supplemental Balance Sheet Information Related To Leases [Table Text Block]
Supplemental Balance Sheet Information Related to Leases
Intangible Asset, Goodwill and Other [Abstract]
Document Type
Inventory valuation reserves foreign currency translation adjustments.
Inventory Valuation Reserves Foreign Currency Translation Adjustments
Translation adjustments
Net Cash Provided by (Used in) Operating Activities [Abstract]
Cash flows from operating activities
Disposal Group, Including Discontinued Operations [Line Items]
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]
Liabilities and Equity [Abstract]
Liabilities and Stockholders' Equity
Long-Term Debt, Maturities, Repayments of Principal in Next Rolling 12 Months
Remainder of 2026
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Operating Income (Loss)
Operating loss
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Others, net
Postemployment Benefits [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Changes in Accumulated Other Comprehensive Loss
Disposal Group Classification [Axis]
Segment Reporting [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Asset Class [Domain]
Entity File Number
Inventory, Finished Goods, Gross
Finished goods
Increase (Decrease) in Other Receivables
Other receivables
Postemployment Benefits Disclosure [Text Block]
Accrued Severance Benefits
Non Current Operating Lease Liabilities [Member]
Location, Statement of Income, Balance [Axis]
Retained Earnings [Member]
Retained Earnings [Member]
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share
Discontinued operations
Discontinued operations
Current Operating Lease Liabilities [Member]
Entity Registrant Name
Zero Cost Collar Two [Member]
Zero Cost Collar Two [Member]
Zero Cost Collar Two [Member]
Accounting Policies [Abstract]
Depreciation
Depreciation expenses
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net loss
Discontinued Operations [Member]
Discontinued Operations
Selling, General and Administrative Expense
Selling, general and administrative expenses
Selling, General and Administrative Expense, Total
Disposal Group Including Discontinued Operation Account Receivable Current
Disposal Group Including Discontinued Operation Account Receivable Current
Accounts receivable, net
Entity Address, Address Line One
UNITED STATES
United States [Member]
Incremental Common Shares Attributable to Dilutive Effect of Equity Unit Purchase Agreements
Net effect of dilutive equity awards
Subsidiary, Sale of Stock [Line Items]
Amount of financing cash flows from finance leases.
Financing Cash Flows From Finance Leases
Financing cash flows from finance leases
All Currencies [Domain]
Assets, Current
Total current assets
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Postemployment benefits provisions.
Postemployment Benefits Provisions
Provisions
Derivative, Settlement Start Date, Month Year
Derivative, Settlement Start Date, Month Year
Month of settlement, start
Segments [Axis]
Segments [Axis]
Supplemental Cash Flow Information [Abstract]
Supplemental cash flow information
Minimum sum of qualified and unrestricted cash and cash equivalents.
Minimum Sum Of Qualified And Unrestricted Cash And Cash Equivalents
Termination provisions for cash and cash equivalents
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Five
2030
Entity Small Business
Long-term Debt, Excluding Current Maturities
Long-term borrowings (Note 11)
Long-term borrowings
Long-term borrowings
Foreign currency transaction gain loss before tax including intercompany balances.
Foreign Currency Transaction Gain Loss Before Tax Including Intercompany Balances
Loss (gain) on foreign currency, net
Power Solutions Business [Member]
Standard products business [Member]
Power solutions business
Inventory Valuation Reserves
Less: inventory reserve
Ending balance
Beginning balance
Long-term Debt, Type [Axis]
Accounts Receivable, Net, Current
Accounts receivable, net
Accounts receivable, net
Consolidation Items [Domain]
Consolidation Items [Domain]
Schedule Of Cash Flow Information Related To Discontinued Operation [Table]
Property, Plant and Equipment, Other Types [Member]
Others [Member]
Employee-related Liabilities, Current
Payroll, benefits and related taxes, excluding severance benefits
Nomura Financial Investment Co Ltd [Member]
Nomura Financial Investment Co Ltd [Member]
Nomura Financial Investment (Korea) Co., Ltd. [Member]
Schedule of Long-Term Debt Instruments [Table Text Block]
Schedule of Borrowings
Treasury Stock, Shares, Acquired
Acquisition of treasury stock, Shares
lease right of use asset
Lease Right Of Use Asset
Total lease assets
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Finance Lease, Liability, to be Paid, Year Four
Finance Leases, 2029
Earnings Per Share [Abstract]
Earnings Per Share [Abstract]
Derivative Asset
Derivative assets
Net amounts of liabilities presented in the balance sheets
Other current assets
Net amounts of liabilities presented in the balance sheets
Lessee, Operating Lease, Liability, to be Paid, Year Four
Operating Leases, 2029
Postemployment Benefits Liability
Ending balance
Beginning balance
The entire disclosure related to discontinued operations and assets held for sale.
Disclosure Of Discontinued Operations and Assets Held for Sale [Text Block]
Discontinued Operations
Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral
Gross amounts of recognized liabilities
Equity [Abstract]
Repayment of financing related to water treatment facility arrangement.
Repayment of Financing Related to Water Treatment Facility Arrangement
Repayment of financing related to water treatment facility arrangement
Product and Service [Domain]
Products and Services [Domain]
Stockholders' Equity
Equity [Text Block]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Construction in Progress, Gross
Construction in progress
Concentration risk, percentage
Concentration Risk Percentage on Accounts Receivable
Concentration risk percentage on accounts receivable.
Derivative, Collateral, Right to Reclaim Securities
Gross amounts not offset in the balance sheets, Financial instruments
Entity Tax Identification Number
Disposal group including discontinued operation early termination charges.
Early termination charges
Treasury Stock, Common, Shares
Treasury stock, shares
Other Charges [Abstrsct]
Other charges.
Accounts Receivable [Member]
Accounts Receivable [Member]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Equity Component [Domain]
Equity Component [Domain]
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
Amounts reclassified from accumulated other comprehensive loss
Entity Address, City or Town
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Revenues from External Customers and Long-Lived Assets [Line Items]
Intangible Asset, Finite-Lived [Line Items]
Finite-Lived Intangible Assets [Line Items]
Capital Expenditures Incurred but Not yet Paid
Property, plant and equipment additions in other accounts payable
Income Tax Paid, after Refund Received
Total
Total
Cash refunded for income taxes
Stock Issued During Period, Value, New Issues
Issuance of common stock
Disposal Group, Including Discontinued Operation, Interest Expense
Interest expense
Segments [Domain]
Segments [Domain]
Entity Common Stock, Shares Outstanding
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Inventory Write-down
Write off
Derivative, Settlement End Date, Month Year
Derivative, Settlement End Date, Month Year
Month of settlement, end
Derivative, Collateral, Obligation to Return Cash
Gross amounts not offset in the balance sheets, Cash collateral pledged
Intangible Asset and Goodwill [Text Block]
Intangible Assets
Increase (Decrease) in Other Noncurrent Liabilities
Other non-current liabilities
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average number of shares—
No definition available.
Other Lease Information [Table Text Block]
Other Lease Information
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Measurement Basis [Axis]
Measurement Basis [Axis]
Korea (South), Won
Korea (South), Won
Discontinued operations and assets held for sale abstract.
Discontinued Operations and Assets Held for Sale [Abstract]
Statement [Table]
Statement [Table]
Lease, Cost
Total lease cost
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Income (Loss) from continuing operations before income tax benefit, net
Entity Shell Company
Net Cash Provided by (Used in) Investing Activities
Net cash used in investing activities
Statement [Line Items]
Statement [Line Items]
Disposal Group, Including Discontinued Operation, Operating Income (Loss)
Operating income (loss) from discontinued operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share
Discontinued operations
Maximum [Member]
Maximum [Member]
Top Ten Customers [Member]
Top Ten Customers [Member]
Top Ten Customers [Member]
Debt Disclosure [Abstract]
Finance Lease, Liability, Payment, Due
Finance Leases, Total future lease payments
Sale of Stock [Domain]
China and Hong Kong [Member]
China And Hong Kong [Member]
Greater China (China and Hong Kong) [Member]
Foreign Currency [Abstract]
Disposal Groups, Including Discontinued Operations [Table]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Axis]
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Asset Class [Axis]
Discontinued operation income loss from discontinued operation disclosures.
Discontinued Operation Income Loss From Discontinued Operation Disclosures [Table]
Earnings Per Share, Basic [Abstract]
Earnings Per Share, Basic [Abstract]
Basic earnings (loss) per common share-
Zero Cost Collar Five
Zero Cost Collar Five [Member]
Zero Cost Collar Five [Member]
Assets, Current [Abstract]
Current assets
Finance Lease, Liability, Current
Finance
Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction
Net amount
Net amount
Payments for guarantee deposits.
Payments For Guarantee Deposits
Payment of guarantee deposits
Leases [Abstract]
Document Fiscal Year Focus
Increase (Decrease) in Postemployment Obligations
Payment of severance benefits
Derivative, Collateral, Obligation to Return Securities
Gross amounts not offset in the balance sheets, Financial instruments
Common Stock, Shares, Outstanding
Balance, Shares ending
Balance, Shares beginning
Common stock, shares outstanding
Aggregate values of stock related to restricted stock awards issued during the period.
Stock Issued During Period Values Restricted Stock Award Gross
Settlement of restricted stock units
Derivative Liability, Fair Value, Amount Not Offset Against Collateral [Abstract]
Liability Derivatives:
Capex loans.
Capex Loans [Member]
Capex Loans [Member]
Statement of Comprehensive Income [Abstract]
Accounts Payable, Trade, Current
Accounts payable
Increase Decrease In Deferred Income Tax Assets .
Increase Decrease In Deferred Income Tax Assets
Deferred income taxes
Other Current Liabilities 1 [Member]
Other current liabilities 1.
Other Current Liabilities [Member]
Weighted Average Remaining Lease Term [Abstract]
Weighted average remaining lease term
Operating Lease, Liability, Noncurrent
Non-current operating lease liabilities
Operating
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Cash flows from investing activities
Lessee, Operating Lease, Liability, to be Paid
Operating Leases, Total future lease payments
Treasury Stock, Value
Treasury stock, 21,808,596 shares at June 30, 2026 and 21,808,596 shares at December 31, 2025, respectively
Others
Other Accrued Liabilities, Current
Additional Paid in Capital, Common Stock
Additional paid-in capital
Security Exchange Name
Revenues
Net sales
Total revenues
Total Net Sales
Lease Liabilities Current [Abstract]
Current
Finance Lease, Weighted Average Discount Rate, Percent
Finance leases
Postemployment benefit payments year five.
Post employment Benefit Payments Year Five
2031
Derivative, Gain (Loss) on Derivative, Net
Derivative adjustments
Location/Amount of Gain (Loss)
Operating Lease, Right-of-Use Asset
Operating lease right-of-use assets
Operating lease
Amendment Flag
Schedule of Derivative Instruments [Table Text Block]
Details of Zero Cost Collar Contracts
Concentration Risk, Percentage
Concentration risk, percentage
Debt Instrument [Axis]
Other Nonoperating Income (Expense)
Other income (loss), net
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents
Cash and cash equivalents at end of period
Cash and cash equivalents at beginning of period
City Area Code
Cost of Revenue [Abstract]
Cost of sales:
Reported Value Measurement [Member]
Carrying Value [Member]
Proceeds from Issuance of Common Stock
Proceeds from issuance of common stock
Offsetting [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent
Foreign currency translation adjustments
Operating Expenses [Abstract]
Operating expenses:
Zero cost collars.
Zero Cost Collars [Member]
Zero Cost Collars [Member]
Inventory Disclosure [Text Block]
Inventories
Capital Expenditure, Discontinued Operations
Capital expenditures
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Foreign currency exposure.
Threshold Amount Cash Collateral Foreign Currency Exposure
Threshold amount of cash collateral
Income (Loss) from Continuing Operations, Per Basic Share
Continuing operations
Common Stock, Par or Stated Value Per Share
Common stock, par value
Finance Lease, Liability, to be Paid, Year One
Finance Leases, Remainder of 2026
Liabilities, Current
Total current liabilities
Accrued Outside Service Fees Current
Accrued Outside Service Fees Current
Outside service fees
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Asset Derivatives:
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization
Property, plant and equipment, gross
Discontinued operation income loss from discontinued operation disclosures.
Discontinued Operation Income Loss From Discontinued Operation Disclosures [Line Items]
Segment Reporting [Text Block]
Geographic and Other Information
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Finance Lease, Interest Payment on Liability
Operating cash flows from finance leases
Trading Symbol
Finance Lease, Weighted Average Remaining Lease Term
Finance leases
Finance Lease, Right-of-Use Asset, Amortization
Amortization of right-of-use assets
Geographical [Axis]
Geographical [Axis]
Accounts Payable, Other, Current
Other accounts payable
Property, Plant, and Equipment [Table Text Block]
Summary of Property, Plant and Equipment
Disposal Group Including Discontinued Operation Accrued Severance Benefits, Net
Disposal Group Including Discontinued Operation Accrued Severance Benefits, Net
Accrued severance benefits, net
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]
Entity Emerging Growth Company
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table]
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Additional Paid-in Capital [Member]
Additional Paid-In Capital [Member]
Disposal Group Classification [Domain]
Other Liabilities, Noncurrent
Other non-current liabilities
Europe [Member]
Europe [Member]
Portion at Fair Value Measurement [Member]
Portion at Fair Value Measurement [Member] [Default]
Finance Lease, Liability
Present value of future payments
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Non-cash investing activities
Proceeds from long term debt.
Proceeds From Long Term Debt
Proceeds from long-term borrowings
Cover [Abstract]
Operating Lease, Weighted Average Remaining Lease Term
Operating leases
Postemployment benefits translation adjustment.
Postemployment Benefits Translation Adjustment
Translation adjustments
Derivative Liability, Current
Derivative liabilities, current
Other current liabilities
Long-term Debt, Type [Domain]
KOREA, REPUBLIC OF
Korea [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax
Total
Accumulated other comprehensive loss
Intangible Asset, Finite-Lived, Amortization Expense
Amortization expense for intangible assets
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Share-based Compensation
Stock-based compensation
Employee related expenses.
Employee Related Expenses
Employee Related Expenses
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net loss to net cash used in operating activities
Derivative, Inception Date
Date of transaction
Fair Value Disclosures [Abstract]
Cash and Cash Equivalents, at Carrying Value
Cash and cash equivalents
Increase decrease in inventory reserve.
Increase Decrease In Inventory Reserve
Provision (reversal) for inventory reserves
Prepaid Expense, Noncurrent
Long-term prepaid expenses, net
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Net Cash Provided by (Used in) Financing Activities
Net cash provided by (used in) financing activities
Discontinued Operations and Disposal Groups [Abstract]
Payables and Accruals [Abstract]
Depreciation and Amortization, Discontinued Operations
Depreciation and amortization
Entity Filer Category
Debt Instrument, Name [Domain]
Executive Separation Benefits Expenses.
Executive Separation Benefits Expenses
Executive Separation Benefits Expenses
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description
Amount paid for statutory severance and other employee related costs.
Amount Paid For Statutory Severance And Other Employee Related Costs
Other Noncurrent Liabilities 1 [Member]
Other noncurrent liabilities 1.
Other Noncurrent Liabilities [Member]
Working capital term loan.
Working Capital Term Loan [Member]
Working Capital Term Loan [Member]
Increase (Decrease) in Accounts Receivable
Accounts receivable, net
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization
Property, plant and equipment, net
Inventory Disclosure [Abstract]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]
Loan, Held-in-Portfolio, Principal Outstanding, Total
Loan, Held-in-Portfolio, Principal Outstanding, Total
Segment Reporting [Abstract]
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]
Other Assets, Current
Other current assets (Note 18)
Entity Address, Postal Zip Code
Statement of Financial Position [Abstract]
Finance Lease, Principal Payments
Repayment of principal portion of finance lease liabilities
Local Phone Number