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Note 4 - Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Note 4 - Income Taxes (Details) [Line Items] |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 35.00% | 35.00% | 35.00% | 35.00%
Effective Income Tax Rate Reconciliation, Tax Holiday, Percent | 0.40% | 1.40% | 0.40% | 1.30%
Low Or No Tax Cost [Member] |  |  |  |
Note 4 - Income Taxes (Details) [Line Items] |  |  |  |
Undistributed Earnings of Foreign Subsidiaries (in Dollars) | $ 6 |  | $ 6 |
Korean Withholding Tax [Member] |  |  |  |
Note 4 - Income Taxes (Details) [Line Items] |  |  |  |
Income Tax Expense (Benefit), Continuing Operations, Adjustment for Equity Investment Dividend (in Dollars) |  |  |  | $ 102
Foreign Tax Authority [Member] |  |  |  |
Note 4 - Income Taxes (Details) [Line Items] |  |  |  |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (in Dollars) |  | $ 135 |  | $ 146

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