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Note 10. Business Combinations (Detail) - Valuation of Assets Acquired (USD $)
In Thousands, unless otherwise specified
0 Months Ended 12 Months Ended 1 Months Ended 0 Months Ended 12 Months Ended
May 04, 2012
Feb. 02, 2013
Mar. 21, 2011
Technology [Member]
Acquisition of Computer Manufacturer [Member]
Developed Technology Rights [Member]
Mar. 21, 2011
Technology Leveraged [Member]
Acquisition of Computer Manufacturer [Member]
Developed Technology Rights [Member]
Mar. 21, 2011
Acquisition of Computer Manufacturer [Member]
Customer Relationships [Member]
Mar. 21, 2011
Acquisition of Computer Manufacturer [Member]
In-process research and development [Member]
Mar. 21, 2011
Acquisition of Computer Manufacturer [Member]
May 04, 2012
Trident Microsystems, Inc. [Member]
Developed Technology Rights [Member]
May 04, 2012
Trident Microsystems, Inc. [Member]
Feb. 02, 2013
Developed Technology Rights [Member]
Jan. 28, 2012
Developed Technology Rights [Member]
Feb. 02, 2013
Customer Relationships [Member]
Jan. 28, 2012
Customer Relationships [Member]
Purchase consideration:                          
Cash             $ 5,000   $ 38,210        
Net tangible assets             752   38,431        
Identifiable intangible assets:                   3 years 219 days 4 years 255 days 3 years 219 days 4 years 292 days
Developed technology                          
Identifiable intangible assets - Amount     1,250 1,680 750 370   1,168          
Identifiable intangible assets - Estimated useful life     5 years 8 years 5 years     3 years          
Goodwill           198              
Total consideration 38,200         5,000     38,210        
Gain on acquisition $ (1,389) $ (1,389)             $ (1,400)