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Commitments and Contingencies - Additional Information (Detail)
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 29, 2014
USD ($)
Jul. 31, 2012
USD ($)
Sep. 30, 2012
USD ($)
Dec. 31, 2015
USD ($)
a
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2015
ft²
Dec. 31, 2012
USD ($)
May. 31, 2010
USD ($)
Loss Contingencies [Line Items]                  
Rental expense under operating leases   $ 250,000   $ 410,000 $ 408,000 $ 402,000      
Settlement reserve accrued     $ 611,691            
Additional reserve reflect value of additional underdeveloped acres and cost               $ 723,058  
Summary judgment of foreclosure hearing date       Jan. 12, 2012          
Area of real estate property       160     1,700,000    
FM Bayberry Cove Holding, LLC [Member]                  
Loss Contingencies [Line Items]                  
Claim of lien on real property                 $ 3,800,000
Area of real estate property | a       600          
Claim for un-reimbursed costs and accrued interest $ 4,700,000                
Company's foreclosure sale date       Jan. 29, 2014          
FM Bayberry Cove Holding, LLC [Member] | Minimum [Member]                  
Loss Contingencies [Line Items]                  
Claim for un-reimbursed costs and accrued interest       $ 4,600,000