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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2016
Schedule Of Share Based Compensation Expenses [Table Text Block] | The amount of share-based compensation expenses included in applicable costs of sales and expense categories and related tax effects are summarized as follows:
|  | Year Ended December 31, |
|  | 2014 |  |  | 2015 |  |  | 2016 |
|  | (in thousands) |
Cost of revenues |  | $ | 121 |  |  |  | 110 |  |  |  | 224 |
Research and development |  |  | 7,610 |  |  |  | 4,289 |  |  |  | 7,586 |
General and administrative |  |  | 1,688 |  |  |  | 865 |  |  |  | 1,210 |
Sales and marketing |  |  | 1,847 |  |  |  | 1,010 |  |  |  | 1,389 |
Total compensation recognized in income |  | $ | 11,266 |  |  |  | 6,274 |  |  |  | 10,409 |
Income tax benefit |  | $ | 2,437 |  |  |  | 1,342 |  |  |  | 2,164 |
Restricted Stock Units (Rsus) [Member] |
Schedule Of Share Based Compensation Expenses [Table Text Block] | The allocation of compensation expenses and related tax effects from the RSUs granted to employees under the long-term incentive plan are summarized as follows:
|  | Year Ended December 31, |
|  | 2014 |  |  | 2015 |  |  | 2016 |
|  | (in thousands) |
Cost of revenues |  | $ | 121 |  |  |  | 87 |  |  |  | 132 |
Research and development |  |  | 7,610 |  |  |  | 4,249 |  |  |  | 7,423 |
General and administrative |  |  | 1,688 |  |  |  | 855 |  |  |  | 1,174 |
Sales and marketing |  |  | 1,847 |  |  |  | 1,006 |  |  |  | 1,373 |
Total compensation from RSUs |  | $ | 11,266 |  |  |  | 6,197 |  |  |  | 10,102 |
Income tax benefit |  | $ | 2,437 |  |  |  | 1,342 |  |  |  | 2,164 |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] | RSUs activity under the long-term incentive plan during the periods indicated is as follows:
|  | Number of Underlying Shares for RSUs |  |  | Weighted Average Grant Date Fair Value |
Balance at January 1, 2014 |  |  | 1,511,223 |  |  | $ | 2.47 |
Granted |  |  | 1,219,791 |  |  |  | 9.27 |
Vested |  |  | (1,694,872 | ) |  |  | 6.44 |
Forfeited |  |  | (72,136 | ) |  |  | 2.06 |
Balance at December 31, 2014 |  |  | 964,006 |  |  |  | 4.11 |
Granted |  |  | 597,596 |  |  |  | 7.92 |
Vested |  |  | (1,257,803 | ) |  |  | 5.19 |
Forfeited |  |  | (99,792 | ) |  |  | 2.94 |
Balance at December 31, 2015 |  |  | 204,007 |  |  |  | 9.17 |
Granted |  |  | 1,208,785 |  |  |  | 8.30 |
Vested |  |  | (1,207,241 | ) |  |  | 8.39 |
Forfeited |  |  | (23,063 | ) |  |  | 9.04 |
Balance at December 31, 2016 |  |  | 182,488 |  |  |  | 8.60 |
Imaging Taiwan [Member] |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] | Non-vested share activity of this award for Imaging Taiwan during the period indicated is as follows:
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Balance at January 1, 2014 |  |  | 31,139 |  |  | $ | 0.72 |
Vested |  |  | (31,139 | ) |  |  | 0.72 |
Forfeited |  |  | - |  |  |  | - |
Balance at December 31, 2014 |  |  | - |  |  |  | - |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The risk-free rates for the expected term of the options are based on the interest rates of 2 years and 5 years ROC central government bond at the time of grant.
|  | 2016 plan |
Valuation assumptions: |  |  |  |
Expected dividend yield |  |  | 0 | %
Expected volatility |  |  | 38.04 | %
Expected term (years) |  |  | 3.125 |
Risk-free interest rate |  |  | 0.50 | %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | Stock option activity during the periods indicated is as follows:
|  | Number of shares |  |  | Weighted average exercise price |  |  | Weighted average remaining contractual term |
Balance at January 1, 2016 |  |  | - |  |  | $ | - |  |  |  |  |
Granted |  |  | 1,925,000 |  |  |  | 0.9139 |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |
Forfeited |  |  | (128,000 | ) |  |  | 0.9139 |  |  |  |  |
Balance at December 31, 2016 |  |  | 1,797,000 |  |  |  | 0.9139 |  |  |  | 3.0 |
Exercisable at December 31, 2016 |  |  | - |  |  |  | - |  |  |  |  |
Imaging Cayman [Member] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The risk-free rates for the expected term of the options are based on the interest rates of 2 years and 5 years ROC central government bond at the time of grant.
|  | 2012 plan |  |  | 2013 plan |  |  | 2016 plan |
Valuation assumptions: |  |  |  |  |  |  |  |  |  |  |  |
Expected dividend yield |  |  | 0 | % |  |  | 0 | % |  |  | 0 | %
Expected volatility |  |  | 43.29 | % |  |  | 39.50 | % |  |  | 38.04 | %
Expected term (years) |  |  | 3.125 |  |  |  | 2.125 |  |  |  | 3.125 |
Risk-free interest rate |  |  | 0.87 | % |  |  | 0.85 | % |  |  | 0.50 | %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | Stock option activity during the periods indicated is as follows:
|  | Number of shares |  |  | Weighted average exercise price |  |  | Weighted average remaining contractual term |
Balance at January 1, 2014 |  |  | 1,400,000 |  |  | $ | 1.003 |  |  |  | 2.5 |
Granted |  |  | - |  |  |  | - |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |
Forfeited |  |  | (90,000 | ) |  |  | 1.002 |  |  |  |  |
Balance at December 31, 2014 |  |  | 1,310,000 |  |  |  | 1.003 |  |  |  | 1.5 |
Granted |  |  | - |  |  |  | - |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |
Forfeited |  |  | (85,000 | ) |  |  | 1.003 |  |  |  |  |
Balance at December 31, 2015 |  |  | 1,225,000 |  |  |  | 1.003 |  |  |  | 0.5 |
Granted |  |  | 631,000 |  |  |  | 0.9139 |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |
Forfeited |  |  | (1,240,000 | ) |  |  | 1.002 |  |  |  |  |
Balance at December 31, 2016 |  |  | 616,000 |  |  |  | 0.9139 |  |  |  | 3.0 |
Exercisable at December 31, 2016 |  |  | - |  |  |  | - |  |  |  |  |
Himax Display [Member] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The risk-free rate for the expected term of the options is based on the interest rates of 2 years and 5 years ROC central government bond at the time of grant.
|  | 2015 plan |
Valuation assumptions: |  |  |  |
Expected dividend yield |  |  | 0 | %
Expected volatility |  |  | 33.52 | %
Expected term (years) |  |  | 3.125 |
Risk-free interest rate |  |  | 0.65 | %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | Stock option activity during the periods indicated is as follows:
|  | Number of shares |  |  | Weighted average exercise price |  |  | Weighted average remaining contractual term |
Balance at January 1, 2015 |  |  | - |  |  | $ | - |  |  |  |  |
Granted |  |  | 2,025,000 |  |  |  | 1.986 |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |
Forfeited |  |  | - |  |  |  | - |  |  |  |  |
Balance at December 31, 2015 |  |  | 2,025,000 |  |  |  | 1.986 |  |  |  | 3.75 |
Granted |  |  | - |  |  |  | - |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |
Forfeited |  |  | (32,000 | ) |  |  | 1.986 |  |  |  |  |
Balance at December 31, 2016 |  |  | 1,993,000 |  |  |  | 1.986 |  |  |  | 2.75 |
Exercisable at December 31, 2016 |  |  | - |  |  |  | - |  |  |  |  |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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