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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