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Stock-Based Compensation - Additional Information (Detail) (USD $)
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3 Months Ended | 1 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 9 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | |||||||||||||||||||
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May 04, 2013
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Apr. 28, 2012
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May 04, 2013
Cost of goods sold
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Apr. 28, 2012
Cost of goods sold
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May 04, 2013
Selling, General and Administrative Expense
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Apr. 28, 2012
Selling, General and Administrative Expense
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Jun. 14, 2006
1996 Equity Incentive Plan
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Jun. 14, 2006
1996 Equity Incentive Plan
Maximum
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Jun. 05, 2012
2006 Equity Incentive Plan
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Jun. 05, 2012
2006 Equity Incentive Plan
Maximum
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Mar. 31, 2012
2006 Equity Incentive Plan
Chief Executive Officer
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Mar. 31, 2011
2006 Equity Incentive Plan
Chief Executive Officer
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May 04, 2013
2006 Equity Incentive Plan
Chief Executive Officer
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Apr. 28, 2012
2006 Equity Incentive Plan
Chief Executive Officer
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May 23, 2013
2006 Equity Incentive Plan
Subsequent Event
Chief Executive Officer
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May 04, 2013
2006 Equity Incentive Plan
Restricted Stock
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Apr. 28, 2012
2006 Equity Incentive Plan
Restricted Stock
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Apr. 30, 2012
2006 Equity Incentive Plan
Restricted Stock
Independent consultant
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Oct. 27, 2012
2006 Equity Incentive Plan
Restricted Stock
Independent consultant
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Mar. 31, 2012
2006 Equity Incentive Plan
Restricted Stock
Non Employee Director
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Jun. 30, 2011
2006 Equity Incentive Plan
Restricted Stock
Non Employee Director
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Apr. 28, 2012
2006 Equity Incentive Plan
Restricted Stock
Non Employee Director
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Apr. 28, 2012
2006 Equity Incentive Plan
Employee Stock Option
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Mar. 31, 2011
2006 Equity Incentive Plan
Employee Stock Option
Employees
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May 04, 2013
2006 Equity Incentive Plan
Employee Stock Option
Employees
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May 04, 2013
2006 Equity Incentive Plan
Employee Stock Option
Accelerated Vesting of Stock Options
Employees
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Jun. 05, 2012
1996 NEDSOP
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Jun. 05, 2012
1996 NEDSOP
Maximum
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May 04, 2013
2012 Equity Incentive Plan
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May 04, 2013
2012 Equity Incentive Plan
Maximum
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May 04, 2013
2012 Equity Incentive Plan
Minimum
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May 04, 2013
2012 Equity Incentive Plan
Minimum
Persons possessing 10% or more of voting power
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Jun. 30, 2012
2012 Equity Incentive Plan
Restricted Stock
Non Employee Director
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May 04, 2013
2012 Equity Incentive Plan
Restricted Stock
Non Employee Director
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Jun. 30, 1996
ESPP
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May 04, 2013
ESPP
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Apr. 28, 2012
ESPP
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||||||||||||||||||||||||||||||
| Number of shares available for grant | 732,456 | 942,602 | 34,976 | 4,676,349 | 652,254 | ||||||||||||||||||||||||||||||||
| Aggregate number of shares authorized for grant | 18,300,000 | 3,082,456 | 720,000 | 1,350,000 | |||||||||||||||||||||||||||||||||
| Options, expiration period | 10 years | 10 years | 10 years | 8 years | |||||||||||||||||||||||||||||||||
| Exercise price percentage on fair market value of common stock on date of grant | 100.00% | 110.00% | |||||||||||||||||||||||||||||||||||
| Number of additional shares authorized for grant | 3,100,000 | ||||||||||||||||||||||||||||||||||||
| Stock Purchase Plan discount | 15.00% | ||||||||||||||||||||||||||||||||||||
| Stock-based compensation expense | $ 960,000 | $ 1,001,000 | $ 248,000 | $ 161,000 | $ 700,000 | $ 800,000 | $ 25,000 | $ 49,000 | $ 1,100,000 | $ 100,000 | $ 50,000 | $ 89,000 | $ 42,000 | ||||||||||||||||||||||||
| Award grants in period | 2,525 | 515 | 25,387 | 21,008 | |||||||||||||||||||||||||||||||||
| Vesting period | 4 years | 1 year | |||||||||||||||||||||||||||||||||||
| Number of options granted | 20,000 | 100,000 | 500,000 | 214,000 | |||||||||||||||||||||||||||||||||
| Number of options vested | 500,000 | ||||||||||||||||||||||||||||||||||||
| Total fair value of shares vested | 1,400,000 | 900,000 | |||||||||||||||||||||||||||||||||||
| Unrecognized expense | $ 5,300,000 | $ 8,000,000 | $ 132,000 | $ 319,000 | $ 17,000 | $ 38,000 | $ 400,000 | ||||||||||||||||||||||||||||||
| Unrecognized expense, weighted average recognition period | 2 years 4 months 10 days | 2 years 11 months 12 days | 2 years 11 months 1 day | 3 years 11 months 1 day | 1 month 2 days | 1 month 17 days | 2 years 11 months 1 day | ||||||||||||||||||||||||||||||
| Weighted average fair value at grant date | $ 3.44 | ||||||||||||||||||||||||||||||||||||