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Stock-Based Compensation - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 28, 2013
Dec. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares of common stock available for grant 533,000   533,000  
Stock-based compensation $ 600,000 $ 200,000 $ 1,091,000 $ 582,000
Weighted average grant-date fair values of the options $ 5.00 $ 1.98 $ 2.48 $ 2.30
Shares purchased under ESPP     2.62 1.31
Dividend yield     0.00%  
Assumed annualized forfeiture rate     5.00%  
Total unrecognized compensation cost related to non-vested stock options granted and outstanding $ 1,000,000   $ 1,000,000  
Director Option Plan [Member] | Annual Non-Employee Director Grant [Member] | Prior to March 2010 [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     4 years  
Cliff vest percentage on the anniversary of the grant     25.00%  
Director Option Plan [Member] | Annual Non-Employee Director Grant [Member] | From March 2010 [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Annual option grants     6,000  
Director Option Plan [Member] | Initial Non-Employee Director Grant [Member] | From March 2010 [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Annual option grants     10,000  
Share-based Compensation Arrangement by Share-based Payment Award, Award Annual Vesting Percentage     50.00%  
Stock Option Plans [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option contractual term     10 years  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     4 years  
Options outstanding, weighted average remaining contractual life     2 years 6 months  
ESPP [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Discount percentage, ESPP 15.00%   15.00%  
Plan-defined purchase date intervals     6 months  
Shares available for issuance under employee stock purchase plan     344,000  
Restricted Stock and RSU [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     2 years  
Options outstanding, weighted average remaining contractual life     1 month 6 days