Annual report pursuant to Section 13 and 15(d)

Organization and Summary of Significant Accounting Policies - Acquisition of Entropic Communications, Inc (Details)

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Organization and Summary of Significant Accounting Policies - Acquisition of Entropic Communications, Inc (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 28, 2016
Apr. 30, 2015
Dec. 31, 2016
Business Acquisition [Line Items]      
Cash $ 21,000   $ 80,000
Entropic Communications [Member]      
Business Acquisition [Line Items]      
Cash   $ 111,125