Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details 1)

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Income Taxes (Details 1) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Deferred income tax assets:    
Federal net operating loss $ 50,174 $ 40,208
State net operating loss 6,774 7,254
Foreign net operating loss 3,427 2,142
Capitalized research and development expense 2,162 2,884
Research and development tax credit 4,204 3,688
Stock options 6,326 5,283
Accruals 1,556 836
Other 4,094 2,991
Deferred income tax assets 78,717 65,286
Deferred income tax liabilities:    
Intangible assets (25,738) (18,788)
Other (3,277) (106)
Deferred income tax liabilities (29,015) (18,894)
Net deferred income tax assets 49,702 46,392
Valuation allowance (59,145) (53,255)
Net deferred income tax liabilities $ (9,443) $ (6,863)