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Shares Used In Computing Diluted Net Loss Per Share - Additional Information (Detail)
3 Months Ended 6 Months Ended
Oct. 03, 2014
Oct. 04, 2013
Oct. 03, 2014
Oct. 04, 2013
Employee Stock Options [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 318,354 14,204 312,750 52,603
Restricted Stock Units [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 31,950 0 0 41,028