Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - Additional Information (Detail)

v2.4.0.6
Related Party Transactions - Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Related Party Transaction [Line Items]      
Consulting fees   $ 40,000 $ 123,750
Related party expenses 36,000 36,000 30,000
Revenue from affiliated 31,200,000 22,700,000  
Ranch Lease Agreement [Member]
     
Related Party Transaction [Line Items]      
Number of ranch lease agreements 2    
Ranch Lease Agreement [Member] | Cypress Springs Ranch [Member]
     
Related Party Transaction [Line Items]      
Fees pursuant to the ranch lease agreements for right to utilize premises of ranches 39,875    
Ranch Lease Agreement [Member] | Camp Verde Ranch [Member]
     
Related Party Transaction [Line Items]      
Fees pursuant to the ranch lease agreements for right to utilize premises of ranches $ 1,650