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Note 8 - Equity Investment (Details) (MWL [Member], USD $)
3 Months Ended 6 Months Ended
Mar. 31, 2013
Intersegment Eliminations [Member]
Jun. 30, 2014
Percentage Owned By Non-Related Party [Member]
Jun. 30, 2014
Jun. 30, 2013
Mar. 28, 2013
Note 8 - Equity Investment (Details) [Line Items]          
Equity Method Investment, Ownership Percentage   55.00% 45.00%    
Equity Method Investments         $ 2,600,000
Revenue from Related Parties     3,600,000 4,200,000  
Revenue, Net 2,100,000        
Due from Affiliates     891,000    
Due to Affiliate     $ 1,700,000