Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012
Allowance for Doubtful Accounts Receivable, Current	$ 9,183	$ 9,554
Preferred Stock, Par or Stated Value Per Share	$ 1	$ 1
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Shares Issued	0	0
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	120,000,000	120,000,000
Common Stock, Shares, Issued	50,370,541	49,652,737