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Note 20 - Subsequent Events (Detail) (USD $)
In Millions, unless otherwise specified
1 Months Ended
Feb. 28, 2013
Jan. 28, 2013
Nov. 30, 2012
3.75% Unsecured Convertible Subordinated Debentures Due in 2026 [Member]
Jan. 30, 2013
"Again Faster" [Member]
Jan. 31, 2013
"Ruckus" [Member]
Jan. 28, 2013
School Specialties [Member]
Business Acquisition, Percentage of Voting Interests Acquired       40.00% 20.00%  
Business Acquisition, Cost of Acquired Entity, Cash Paid       $ 4.0 $ 1.0  
Repayments of Notes Payable 10.0          
Investment Owned, Balance, Principal Amount     11.9      
Debt Instrument, Interest Rate, Stated Percentage     3.75%      
Investment Owned, at Cost     6.0      
Debtor-in-Possession Financing Receivable   22.0        
Debtor-in-Possession Financing, Amount Arranged           $ 155.0