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Note 7 - Property and Equipment (Details) - Property and Equipment (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Line Items]    
Property, plant and equipment $ 165,193 $ 165,851
Less accumulated depreciation (71,510) (63,543)
93,683 102,308
Construction in Progress [Member]
    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 127,199 130,014
Transportation Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 19,132 19,266
Building [Member]
    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 10,512 10,176
Office Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 2,025 1,279
Leasehold Improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 816  
Land [Member]
    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 5,309 4,916
Water Rights [Member]
    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment $ 200 $ 200