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Note 9 - Equity Investment (Details) (MWL [Member], USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Mar. 28, 2013
Note 9 - Equity Investment (Details) [Line Items]        
Equity Method Investment, Ownership Percentage 45.00%      
Equity Method Investments       $ 2,600,000
Revenue from Related Parties 8,200,000 9,700,000 9,000,000  
Due from Affiliates 610,000      
Due to Affiliate 3,900,000      
Intersegment Eliminations [Member]
       
Note 9 - Equity Investment (Details) [Line Items]        
Revenue, Net $ 2,100,000 $ 9,700,000 $ 9,000,000  
Percentage Owned By Non-Related Party [Member]
       
Note 9 - Equity Investment (Details) [Line Items]        
Equity Method Investment, Ownership Percentage 55.00%