XML 76 R38.htm IDEA: XBRL DOCUMENT v2.4.0.6
Accounts Receivable (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 27, 2013
Apr. 29, 2012
Jan. 29, 2012
May 01, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Customers $ 25,533 $ 26,100    
Accounts receivable, net 24,257 25,055 [1] 22,012  
Allowance for doubtful accounts [Member]
       
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Valuation allowance, balance (696) (567) (561) (776)
Reserve for returns and allowances and discounts [Member]
       
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Valuation allowance, balance $ (580) $ (478) $ (540) $ (577)
[1] Derived from audited financial statements.