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Note 1 - Basis of Presentation and Recent Accounting Pronouncements (Details Textual) - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
RED-Rochester, LLC [Member] | Variable Interest Entity, Primary Beneficiary [Member]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets $ 71 $ 69
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities 14 13
RED-Rochester, LLC [Member]    
Noncontrolling Interest in Variable Interest Entity 26 25
Deferred Tax Assets, Net of Valuation Allowance, Current $ 22 $ 22