XML 41 R16.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock Based Compensation - Plans (Tables)
3 Months Ended
Oct. 27, 2012
Stock Based Compensation [Abstract]  
Stock Based Compensation Plans
 1987 2004  
 Plan Plan Total
Options and/or restricted stock initially authorized5,850,000 1,350,000 7,200,000
Options and/or restricted stock available for grant:     
January 28, 201220,127 542,309 562,436
October 27, 201220,127 434,166 454,293