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Describes the contribution percentage to individual employee pension plan.

+ References

No definition available.

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- Definition

Describes the value contributed to pension fund.

+ References

No definition available.

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- Definition

Describes the maximum retirement benefit.

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No definition available.

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- Definition

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accumulated Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6503844

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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- Definition

Amount before tax, after reclassification adjustments, of actuarial gain (loss) that has not been recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 10A

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

+ References

No definition available.

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

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- Definition

The amount of cash or cash equivalents contributed by the entity to fund its pension plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

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Retirement Plan (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit And Contribution Plan Disclosure [Line Items]
Description Of Maximum Retirement Benefit	The maximum retirement benefit is 45 months of salary
Description Of Contribution To Pension Fund	The Company contributes an amount equal to 2% of wages and salaries paid every month to the Fund
Defined Contribution Plan, Percentage Of Contribution, Description	the Company is required to make a monthly contribution for full-time employees in the ROC that elected to participate in the Defined Contribution Plan at a rate no less than 6% of the employees monthly wages to the employees individual pension fund accounts at the ROC Bureau of Labor Insurance.
Defined Contribution Plan, Cost Recognized	$ 2,304	$ 2,091	$ 1,844
Defined Benefit Plan, Accumulated Benefit Obligation	1,033	883
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	31
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	34
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	191
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Actuarial Gain (Loss), before Tax	1,128	1,409	1,008
Subsequent Event [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Defined Benefit Plan, Amortization of Net Gains (Losses)	56
Subsequent Event [Member] \| Bank of taiwan [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Pension Contributions	122
Employee Social Security Plan [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	1,012	778	606
ROC Bureau Of Labor Insurance [Member] \| Subsequent Event [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Pension Contributions	$ 2,518