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Income Taxes (Details Textual) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Income Tax [Line Items] |  |  |  |
Percentage Of Additional Corporate Income Tax Rate On Undistributed Income | 10.00% |  |  |
Percentage Of Surtax Rate | 10.00% |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate | 17.00% | 17.00% | 17.00% |
Income Tax Exemption Per Basic and Diluted Earnings Share | $ 0.01 | $ 0.01 | $ 0 |
Undistributed Earnings of Foreign Subsidiaries | $ 582,607 |  |  |
Deferred Tax Assets, Valuation Allowance | 38,347 | 44,995 | 44,825 | 53,437
Percentage Of Income Tax Payable | 50.00% |  |  |
Percentage Of Research and Development Expenditure For Current Year On Investment Tax Credit | 15.00% |  |  |
Cap Percentage Of Income Tax Payable For Current Year | 30.00% |  |  |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 483 | 791 |  |
Combined Tax Rate | 23.85% | 23.85% | 23.85% |
Tax Exemption From Income | 2,392 | 2,921 | 836 |
Himax Taiwan [Member] |  |  |  |
Income Tax [Line Items] |  |  |  |
Deferred Tax Assets, Valuation Allowance |  | 5,800 |  |
Except For Himax Taiwan, Himax Semiconductor, Himax Korea, Himax Japan, Himax Technologies (Suzhou) Co., Ltd., Himax Technologies (Shenzhen) Co., Ltd., and Himax Imaging Corp [Member] |  |  |  |
Income Tax [Line Items] |  |  |  |
Deferred Tax Assets, Valuation Allowance | $ 38,347 | $ 39,195 |  |

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