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Note 16 - Financial Instruments (Details) (USD $)
 1 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2013
Note 16 - Financial Instruments (Details) [Line Items]    
Derivative, Number of Instruments Held 4 4
Derivative, Notional Amount $ 45,000,000 $ 45,000,000
Impairment of Long-Lived Assets Held-for-use 78,200,000 78,200,000
Long-term Debt, Fair Value 43,600,000 43,600,000
Difference between Fair Value and Carrying Value 2,000,000 2,000,000
Long-term Debt 45,644,000 45,644,000
Carrying Value (Member)
    
Note 16 - Financial Instruments (Details) [Line Items]    
Long-term Debt $ 45,600,000 $ 45,600,000
Vessel [Member]
    
Note 16 - Financial Instruments (Details) [Line Items]    
Number of Vessels 9  
Interest Rate Swap [Member]
    
Note 16 - Financial Instruments (Details) [Line Items]    
Derivative, Number of Instruments Held 3 3