XML 37 R46.htm IDEA: XBRL DOCUMENT v2.4.0.6
Nature of Business and Summary of Significant Accounting Policies - Advertising Costs (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Apr. 27, 2013
Apr. 28, 2012
Apr. 30, 2011
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Advertising expense $ 1,584 $ 1,843 $ 1,895