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Property and Equipment - Components of Property and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Line Items]    
Total cost $ 14,665 $ 13,361
Less: accumulated depreciation (5,376) (4,393)
Property and equipment, net 9,289 8,968
Land [Member]
    
Property, Plant and Equipment [Line Items]    
Total cost 1,287 1,287
Building [Member]
    
Property, Plant and Equipment [Line Items]    
Total cost 6,508 6,508
Leasehold Improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Total cost 17  
Computers [Member]
    
Property, Plant and Equipment [Line Items]    
Total cost 619 568
Furniture [Member]
    
Property, Plant and Equipment [Line Items]    
Total cost 1,112 1,043
Automobiles and Other Vehicles [Member]
    
Property, Plant and Equipment [Line Items]    
Total cost 3,067 2,183
Software [Member]
    
Property, Plant and Equipment [Line Items]    
Total cost $ 2,055 $ 1,772