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Note 8 - Equity Investment (Details) (MWL [Member], USD $)
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Mar. 28, 2013
Note 8 - Equity Investment (Details) [Line Items]      
Equity Method Investment, Ownership Percentage 45.00%   45.00%
Equity Method Investments     $ 2,600,000
Revenue from Related Parties 6,300,000 7,200,000  
Due from Affiliates 881,000    
Due to Affiliate 2,300,000    
Intersegment Eliminations [Member]
     
Note 8 - Equity Investment (Details) [Line Items]      
Revenue, Net $ 2,100,000 $ 7,200,000  
Percentage Owned By Non-Related Party [Member]
     
Note 8 - Equity Investment (Details) [Line Items]      
Equity Method Investment, Ownership Percentage 55.00%