Annual report pursuant to Section 13 and 15(d)

Real Estate and Lease Intangibles - Summary Information of Farms (Narrative) (Detail)

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Real Estate and Lease Intangibles - Summary Information of Farms (Narrative) (Detail)
12 Months Ended
Feb. 08, 2016
Dec. 31, 2016
USD ($)
lease
shares
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Real Estate Properties [Line Items]        
Deferred financing costs related to mortgage notes and bonds payable     $ 0  
Payments of legal costs   $ 271,791 1,482,029 $ 950,965
Credits to fees from Adviser [1]   0 320,905 $ 0
2016 New Real Estate Activity        
Real Estate Properties [Line Items]        
Direct leasing costs in connection with acquisitions   206,210    
2016 New Real Estate Activity | New Tenant Lease Agreement        
Real Estate Properties [Line Items]        
Direct leasing costs in connection with acquisitions   $ 9,520    
2015 New Real Estate Activity        
Real Estate Properties [Line Items]        
Direct leasing costs in connection with acquisitions     388,594  
Direct leasing costs     11,825  
Trapnell Road | Plant City, FL        
Real Estate Properties [Line Items]        
Maturity date of lease   Jun. 30, 2017    
Trapnell Road | Plant City, FL | Agricultural Sector        
Real Estate Properties [Line Items]        
Number of leases | lease   3    
Trapnell Road | Plant City, FL | Commercial Sector        
Real Estate Properties [Line Items]        
Number of leases | lease   1    
Maturity date of lease   Jun. 30, 2018    
McIntosh Road        
Real Estate Properties [Line Items]        
Maturity date of lease Jun. 30, 2019      
McIntosh Road | Dover, FL        
Real Estate Properties [Line Items]        
Number of leases | lease   2    
Maturity date of lease   Jun. 30, 2017    
McIntosh Road | Dover, FL | Lease Two        
Real Estate Properties [Line Items]        
Maturity date of lease   Jun. 30, 2019    
McIntosh Road | Dover, FL | Agricultural Sector        
Real Estate Properties [Line Items]        
Maturity date of lease   Jun. 30, 2017    
Gunbarrel Road | Alamosa, CO        
Real Estate Properties [Line Items]        
Number of leases | lease   2    
Maturity date of lease   Feb. 28, 2021    
Gunbarrel Road | Alamosa, CO | 2016 New Real Estate Activity        
Real Estate Properties [Line Items]        
Number of shares issued (in shares) | shares   745,879    
Aggregate fair value   $ 6,500,000    
Payments of legal costs   $ 25,500    
Gunbarrel Road | Alamosa, CO | Land        
Real Estate Properties [Line Items]        
Maturity date of lease   Feb. 28, 2021    
Gunbarrel Road | Alamosa, CO | Facility        
Real Estate Properties [Line Items]        
Maturity date of lease   Jun. 30, 2021    
Baca County | Edler, CO        
Real Estate Properties [Line Items]        
Maturity date of lease   Dec. 31, 2020    
Baca County | Edler, CO | 2016 New Real Estate Activity        
Real Estate Properties [Line Items]        
Number of shares issued (in shares) | shares   125,677    
Aggregate fair value   $ 1,500,000    
Payments of legal costs   $ 8,235    
Nevada Ranch | Merced, CA        
Real Estate Properties [Line Items]        
Maturity date of lease   Nov. 15, 2019    
Nevada Ranch | Merced, CA | 2016 New Real Estate Activity        
Real Estate Properties [Line Items]        
Number of shares issued (in shares) | shares   343,750    
Aggregate fair value   $ 3,900,000    
Payments of legal costs   $ 21,710    
Horse Creek | Baca, CO        
Real Estate Properties [Line Items]        
Maturity date of lease   Dec. 31, 2020    
Horse Creek | Baca, CO | 2016 New Real Estate Activity        
Real Estate Properties [Line Items]        
Number of shares issued (in shares) | shares   233,952    
Aggregate fair value   $ 2,600,000    
Payments of legal costs   7,675    
Long-term mortgage notes and bonds payable        
Real Estate Properties [Line Items]        
Deferred financing costs related to mortgage notes and bonds payable   $ 1,412,017 $ 1,054,222  
[1] Refer to Note 6, “Related-Party Transactions,” for additional information.