XML 33 R43.htm IDEA: XBRL DOCUMENT v2.4.0.6
Fair Value Measurements (Details) (Recurring basis [Member], USD $)
In Thousands, unless otherwise specified
Oct. 27, 2012
Apr. 28, 2012
Level 1 [Member]
   
Assets    
Available-for-sale securities $ 3,101 [1] $ 2,886 [2]
Trading securities 0 [1] 0 [2]
Total 3,101 [1] 2,886 [2]
Level 2 [Member]
   
Assets    
Available-for-sale securities 31,442 [1] 7,364 [2]
Trading securities 1,071 [1] 950 [2]
Total 32,513 [1] 8,314 [2]
Level 3 [Member]
   
Assets    
Available-for-sale securities 0 0
Trading securities 0 0
Total $ 0 $ 0
[1] There were no transfers between Level 1 and Level 2 during fiscal 2013.
[2] There were no transfers between Level 1 and Level 2 during fiscal 2012.