Annual report pursuant to Section 13 and 15(d)

Company And Summary Of Significant Accounting Policies -Schedule of Goodwill and Intangible Assets (Detail)

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Company And Summary Of Significant Accounting Policies -Schedule of Goodwill and Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Property, Plant and Equipment [Line Items]    
Intellectual property $ 7,840 $ 7,840
Goodwill 1,575 1,575
Less accumulated amortization (6,173) (5,267)
Total Intangible Assets $ 3,242 $ 4,148