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Note 5 - Dana Claim (Details Textual)
12 Months Ended
Aug. 07, 2007
USD ($)
Dec. 31, 2014
USD ($)
Mar. 03, 2006
Fair Value [Member]      
Litigation Settlement, Amount $ 76,483,000    
Number of Subsidiaries of Client     40
Number of Supply Commitments Replaced 3    
Bankruptcy Claims, Amount of Claims Filed $ 89,900,000    
Litigation Settlement, Amount $ 89,900,000    
Deferred Revenue, Revenue Recognized   $ 8,657,000