Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Additional Information (Detail)

v3.4.0.3
Borrowings - Additional Information (Detail) - USD ($)
 3 Months Ended
Mar. 31, 2016
Mar. 03, 2016
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Dec. 05, 2014
May. 09, 2014
Debt Instrument [Line Items]              
Unamortized deferred financing costs $ 128,424   $ 128,424   $ 132,495    
Weighted average interest rate on borrowings     3.29% 3.55%      
Note payable, outstanding 160,776,919   $ 160,776,919   142,733,157    
Line of credit, carrying value 2,800,000   2,800,000   100,000    
Undrawn Commitment 60,576,806   60,576,806   78,723,806    
Aggregate amount of bonds issued $ 156,928,055   156,928,055   141,578,935    
Farmer Mac Bonds Payable [Member]              
Debt Instrument [Line Items]              
Weighted average interest rate on borrowings 2.93%            
Debt instrument face amount $ 75,000,000   $ 75,000,000     $ 75,000,000  
Maturity Date     Sep. 12, 2020        
Note payable, outstanding $ 49,153,000   $ 49,153,000   $ 33,706,000    
Debt instrument, fixed interest rate 2.93%   2.93%   2.87%    
Undrawn Commitment $ 25,847,000   $ 25,847,000   $ 41,294,000    
Remaining borrowing capacity 0   0   0    
Aggregate amount of bonds issued 49,200,000   49,200,000        
MetLife Mortgage Notes Payable [Member]              
Debt Instrument [Line Items]              
Debt instrument face amount 100,000,000   $ 100,000,000       $ 100,000,000
Maturity Date     Jan. 05, 2029        
Note payable, outstanding $ 87,470,194   $ 87,470,194   $ 87,470,194    
Debt instrument, fixed interest rate 3.35%   3.35%   3.35%    
Line of credit, carrying value $ 2,800,000   $ 2,800,000        
Undrawn Commitment 12,529,806   12,529,806   $ 12,529,806    
Remaining borrowing capacity 18,700,000   18,700,000   8,900,000    
MetLife Line of Credit [Member]              
Debt Instrument [Line Items]              
Debt instrument face amount 25,000,000   $ 25,000,000       $ 25,000,000
Maturity Date     Apr. 05, 2024        
Note payable, outstanding $ 2,800,000   $ 2,800,000   $ 100,000    
Debt instrument, fixed interest rate 2.86%   2.86%   2.58%    
Undrawn Commitment $ 22,200,000   $ 22,200,000   $ 24,900,000    
Remaining borrowing capacity 18,700,000   18,700,000   8,900,000    
Long-Term Mortgage Notes and Bonds Payable [Member]              
Debt Instrument [Line Items]              
Unamortized deferred financing costs $ 1,000,000   1,000,000   1,100,000    
Farm Credit Central Florida Notes Payable [Member]              
Debt Instrument [Line Items]              
Weighted average interest rate on borrowings 3.42%            
Reduced stated interest rate (16.10%)            
Total borrowings from credit notes payable $ 21,400,000   21,400,000        
MetLife Line of Credit and Notes Payable [Member]              
Debt Instrument [Line Items]              
Undrawn Commitment 34,700,000   $ 34,700,000        
Farm Credit CFL Mortgage Notes Payable [Member]              
Debt Instrument [Line Items]              
Reduced stated interest rate     16.10%        
Debt instrument face amount 22,185,880   $ 22,185,880        
Maturity Date     Apr. 04, 2031        
Note payable, outstanding $ 21,353,725   $ 21,353,725   $ 21,456,963    
Debt instrument, fixed interest rate 3.42%   3.42%   3.42%    
MetLife Facility [Member]              
Debt Instrument [Line Items]              
Debt instrument face amount $ 100,000,000   $ 100,000,000        
Commitment fee on undrawn amount 0.20%   0.20%        
Period for interest rate adjustment     5 years        
Expiration date of commitment     Dec. 31, 2017        
Debt instrument interest rate     Three-month LIBOR plus a spread of 2.25%        
Percentage added to LIBOR     2.25%        
Minimum annualized rate     2.50%        
Line of credit, carrying value $ 2,800,000   $ 2,800,000        
Remaining borrowing capacity 18,700,000   18,700,000        
Mortgage Note Payable [Member] | Long-Term Mortgage Notes and Bonds Payable [Member]              
Debt Instrument [Line Items]              
Aggregate fair value of mortgage notes payable outstanding 157,600,000   157,600,000        
Mortgage notes payable, carrying value 155,900,000   155,900,000        
Mortgage Note Payable [Member] | Short-Term Mortgage Notes and Bonds Payable [Member]              
Debt Instrument [Line Items]              
Mortgage notes payable, carrying value $ 2,100,000   $ 2,100,000        
3.08% Fixed Interest Rate Bond [Member] | Farmer Mac Bonds Payable [Member]              
Debt Instrument [Line Items]              
Debt instrument face amount   $ 11,100,000          
Debt instrument, fixed interest rate   3.08%          
Debt instrument, term   7 years          
2.98% Fixed Interest Rate Bond [Member] | Farmer Mac Bonds Payable [Member]              
Debt Instrument [Line Items]              
Debt instrument face amount   $ 4,400,000          
Debt instrument, fixed interest rate   2.98%          
Debt instrument, term   7 years