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Income Taxes (Details 2) (USD $)
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12 Months Ended |
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|
Dec. 31, 2014
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Dec. 31, 2013
|
Dec. 31, 2011
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| Net operating loss and tax credit carryforwards |
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|
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| Unrecorded tax benefits for stock-based compensation |
$ 18,400,000 |
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| Reconciliation of the changes in the gross balance of unrecognized tax benefits, excluding interest and penalties |
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|
|
| Balance at the beginning of the period |
2,943,000 |
2,318,000 |
2,318,000 |
| Current year additions |
640,000 |
625,000 |
|
| Balance at the end of the period |
3,583,000 |
2,943,000 |
2,318,000 |
| Unrecognized tax benefits that would, if recognized, impact the Company's effective income tax rate |
3,600,000 |
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|
| Minimum period for which net operating loss and credit carryforwards are subject to examinations and adjustments |
3 years |
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|
| Undistributed foreign earning |
1,500,000 |
|
|
| Unrecognized deferred tax liabilities from temporary differences related to the investment in foreign subsidiary that would have been taxable if the Company repatriated the foreign earnings |
300,000 |
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| Federal |
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|
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| Net operating loss and tax credit carryforwards |
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|
|
| Net operating losses |
85,577,000 |
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| Tax credit carryforwards |
3,789,000 |
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|
| State |
|
|
|
| Net operating loss and tax credit carryforwards |
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|
|
| Net operating losses |
86,064,000 |
|
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| Tax credit carryforwards |
2,799,000 |
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| Foreign |
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|
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| Net operating loss and tax credit carryforwards |
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|
|
| Net operating losses |
$ 20,000 |
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