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Income Taxes (Details 2) (USD $)
|
12 Months Ended |
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Dec. 31, 2013
|
Dec. 31, 2012
|
| Tax Credit Carryforward [Line Items] |
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|
|
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| Net operating loss carryforwards resulting from exercise of employee stock options |
$ 5,700,000 |
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|
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| Undistributed earnings of the non-U.S. subsidiaries |
1,500,000 |
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|
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| Activity related to the Company's unrecognized tax benefits |
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|
|
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| Balance at the beginning of the period |
2,478,000 |
[1] |
2,339,000 |
|
| Increases related to prior year tax positions |
175,000 |
|
94,000 |
|
| Increases related to current year tax positions |
222,000 |
|
54,000 |
|
| Reductions to unrecognized tax benefits as a result of a lapse of applicable statue of limitations |
(32,000) |
|
(9,000) |
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| Balance at the end of the period |
2,843,000 |
[2] |
2,478,000 |
[1] |
| Amount of unrecognized tax benefits included as reserve against deferred tax assets |
2,500,000 |
|
2,200,000 |
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| Amount of unrecognized tax benefits included in accrued expenses |
300,000 |
|
300,000 |
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| Unrecognized tax benefits which would reduce annual effective tax rate, if recognized |
300,000 |
|
|
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| Accrued potential penalties and interest related to unrecognized tax benefits |
21,700 |
|
|
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| Liability for potential penalties and interest |
130,000 |
|
|
|
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Research credit carryforwards | Federal
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|
|
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| Tax Credit Carryforward [Line Items] |
|
|
|
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| Research credit carryforwards |
7,700,000 |
|
|
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| Expiry period of tax credit carryforward, if not utilized |
20 years |
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Research credit carryforwards | California
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| Tax Credit Carryforward [Line Items] |
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|
|
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| Research credit carryforwards |
$ 7,900,000 |
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