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Benefit Plan (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Component of voluntary employer matching contributions | |||
| Voluntary employer matching contributions | $ 660 | $ 474 | $ 427 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
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