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Note 4 - Property and Equipment (Details) - Property and Equipment Summary (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment $ 165,145 $ 165,193
Less accumulated depreciation (76,220) (71,510)
88,925 93,683
Computer Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 127,029 127,199
Transportation Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 18,380 19,132
Building [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 10,722 10,512
Office Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 2,347 2,025
Leasehold Improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 843 816
Construction in Progress [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 318  
Land [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 5,306 5,309
Water Rights [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment $ 200 $ 200