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Note 6 - Impairments of Investment in Unconsolidated Affiliate (Detail) (Shocking [Member], USD $)
3 Months Ended
Mar. 30, 2013
Shocking [Member]
 
Asset Impairment Charges $ 10,700,000
Equity Method Investments 8,700,000
Loans and Leases Receivable, Gross, Other 2,000,000
Equity Method Investment and Loan Receivable Carrying Value $ 0