Rent Expense (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Apr. 26, 2013
Apr. 27, 2012
Apr. 29, 2011
Rent Expense [Abstract]      
Minimum Rent $ 33,678 $ 34,738 $ 30,175
Contingent Rent 168 288 388
Total Rent $ 33,846 $ 35,026 $ 30,563