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Note 4 - Property and Equipment (Details) - Property and Equipment Summary (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment $ 169,173 $ 165,193
169,173 165,193
Less accumulated depreciation (78,720) (71,510)
90,453 93,683
Computer Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 130,412 127,199
130,412 127,199
Transportation Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 18,461 19,132
18,461 19,132
Building [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 10,512 10,512
10,512 10,512
Office Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 2,780 2,025
2,780 2,025
Leasehold Improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 867 816
867 816
Construction in Progress [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 424  
424  
Land [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 5,517 5,309
5,517 5,309
Water Rights [Member]
    
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment 200 200
$ 200 $ 200