Quarterly report pursuant to Section 13 or 15(d)

Balance Sheer Details - Cash and Investments (Details)

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Balance Sheer Details - Cash and Investments (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Sep. 30, 2013
Dec. 31, 2012
Balance Sheet Related Disclosures [Abstract]        
Cash and cash equivalents $ 34,055 $ 26,450 $ 26,500 $ 21,810
Short-term investments, available-for-sale 47,740 35,494    
Long-term investments, available-for-sale 12,122 24,410    
Investments and Cash $ 93,917 $ 86,354