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Income Taxes - Components of Income Tax Expense (Benefit) (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Mar. 26, 2011
Income Tax Disclosure [Abstract]      
Current $ 299 $ 332 $ 444
Deferred 393 (820) (4,789)
Valuation allowance (672) 511 4,369
Income tax expense $ 20 $ 23 $ 24