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Goodwill and Indefinite-lived Intangible Assets
3 Months Ended
Mar. 31, 2013
Goodwill and Indefinite-lived Intangible Assets [Abstract]  
Goodwill and Indefinite-lived Intangible Assets
4.   Goodwill and Indefinite-lived Intangible Assets

As a result of the acquisition of Element Energy, Inc. on December 31, 2012, the Company recorded $2,486 of goodwill and $3,100 of indefinite-lived intangible assets which consist of in-process research and development. There was no impairment of goodwill and indefinite-lived intangible assets during the three months ended March 31, 2013. In connection with the fiscal 2012 business combination, of the total purchase consideration of $4.5 million, $3.9 million was paid in the quarter ended March 31, 2013.