Annual report pursuant to Section 13 and 15(d)

Real Estate and Lease Intangibles - Fair Value of Acquired Assets and Liabilities Assumed Related to Properties Acquired (Detail)

v3.6.0.2
Real Estate and Lease Intangibles - Fair Value of Acquired Assets and Liabilities Assumed Related to Properties Acquired (Detail) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price $ 99,721,955  
2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price 25,735,815  
2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 15,470,000  
2016 New Real Estate Activity | Orange Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 5,100,000  
2016 New Real Estate Activity | Lithia Road    
Business Acquisition [Line Items]    
Total Purchase Price 1,700,000  
2016 New Real Estate Activity | Baca County    
Business Acquisition [Line Items]    
Total Purchase Price 6,322,853  
2016 New Real Estate Activity | Diego Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 13,996,606  
2016 New Real Estate Activity | Nevada Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 13,231,832  
2016 New Real Estate Activity | Central Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 6,500,000  
2016 New Real Estate Activity | Horse Creek    
Business Acquisition [Line Items]    
Total Purchase Price 11,664,849  
2015 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   $ 75,966,980
2015 New Real Estate Activity | Espinosa Road    
Business Acquisition [Line Items]    
Total Purchase Price   16,905,500
2015 New Real Estate Activity | Parrish Road    
Business Acquisition [Line Items]    
Total Purchase Price   3,913,280
2015 New Real Estate Activity | Immokalee Exchange    
Business Acquisition [Line Items]    
Total Purchase Price   15,757,700
2015 New Real Estate Activity | Holt County    
Business Acquisition [Line Items]    
Total Purchase Price   5,504,000
2015 New Real Estate Activity | Rock County    
Business Acquisition [Line Items]    
Total Purchase Price   5,504,000
2015 New Real Estate Activity | Bear Mountain    
Business Acquisition [Line Items]    
Total Purchase Price   18,922,500
2015 New Real Estate Activity | Corbitt Road    
Business Acquisition [Line Items]    
Total Purchase Price   3,760,000
2015 New Real Estate Activity | Reagan Road    
Business Acquisition [Line Items]    
Total Purchase Price   5,700,000
Irrigation Systems | 2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price 5,198,831  
Irrigation Systems | 2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price 2,830,738  
Irrigation Systems | 2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 424,112  
Irrigation Systems | 2016 New Real Estate Activity | Orange Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 934,482  
Irrigation Systems | 2016 New Real Estate Activity | Lithia Road    
Business Acquisition [Line Items]    
Total Purchase Price 213,325  
Irrigation Systems | 2016 New Real Estate Activity | Baca County    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Irrigation Systems | 2016 New Real Estate Activity | Diego Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 45,465  
Irrigation Systems | 2016 New Real Estate Activity | Nevada Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 504,445  
Irrigation Systems | 2016 New Real Estate Activity | Central Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 138,237  
Irrigation Systems | 2016 New Real Estate Activity | Horse Creek    
Business Acquisition [Line Items]    
Total Purchase Price 108,027  
Irrigation Systems | 2015 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   6,023,326
Irrigation Systems | 2015 New Real Estate Activity | Espinosa Road    
Business Acquisition [Line Items]    
Total Purchase Price   497,401
Irrigation Systems | 2015 New Real Estate Activity | Parrish Road    
Business Acquisition [Line Items]    
Total Purchase Price   1,299,851
Irrigation Systems | 2015 New Real Estate Activity | Immokalee Exchange    
Business Acquisition [Line Items]    
Total Purchase Price   515,879
Irrigation Systems | 2015 New Real Estate Activity | Holt County    
Business Acquisition [Line Items]    
Total Purchase Price   729,884
Irrigation Systems | 2015 New Real Estate Activity | Rock County    
Business Acquisition [Line Items]    
Total Purchase Price   540,589
Irrigation Systems | 2015 New Real Estate Activity | Bear Mountain    
Business Acquisition [Line Items]    
Total Purchase Price   494,253
Irrigation Systems | 2015 New Real Estate Activity | Corbitt Road    
Business Acquisition [Line Items]    
Total Purchase Price   470,875
Irrigation Systems | 2015 New Real Estate Activity | Reagan Road    
Business Acquisition [Line Items]    
Total Purchase Price   1,474,594
Other Improvements | 2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price 2,247,607  
Other Improvements | 2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price 2,079,102  
Other Improvements | 2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Other Improvements | 2016 New Real Estate Activity | Orange Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Other Improvements | 2016 New Real Estate Activity | Lithia Road    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Other Improvements | 2016 New Real Estate Activity | Baca County    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Other Improvements | 2016 New Real Estate Activity | Diego Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Other Improvements | 2016 New Real Estate Activity | Nevada Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Other Improvements | 2016 New Real Estate Activity | Central Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Other Improvements | 2016 New Real Estate Activity | Horse Creek    
Business Acquisition [Line Items]    
Total Purchase Price 168,505  
Horticulture | 2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price 14,867,983  
Horticulture | 2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Horticulture | 2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 11,430,452  
Horticulture | 2016 New Real Estate Activity | Orange Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Horticulture | 2016 New Real Estate Activity | Lithia Road    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Horticulture | 2016 New Real Estate Activity | Baca County    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Horticulture | 2016 New Real Estate Activity | Diego Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Horticulture | 2016 New Real Estate Activity | Nevada Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Horticulture | 2016 New Real Estate Activity | Central Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 3,437,531  
Horticulture | 2016 New Real Estate Activity | Horse Creek    
Business Acquisition [Line Items]    
Total Purchase Price 0  
In-place Leases | 2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price 501,358  
In-place Leases | 2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price 381,977  
In-place Leases | 2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
In-place Leases | 2016 New Real Estate Activity | Orange Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
In-place Leases | 2016 New Real Estate Activity | Lithia Road    
Business Acquisition [Line Items]    
Total Purchase Price 7,739  
In-place Leases | 2016 New Real Estate Activity | Baca County    
Business Acquisition [Line Items]    
Total Purchase Price 0  
In-place Leases | 2016 New Real Estate Activity | Diego Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 58,445  
In-place Leases | 2016 New Real Estate Activity | Nevada Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 53,197  
In-place Leases | 2016 New Real Estate Activity | Central Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
In-place Leases | 2016 New Real Estate Activity | Horse Creek    
Business Acquisition [Line Items]    
Total Purchase Price 0  
In-place Leases | 2015 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   530,283
In-place Leases | 2015 New Real Estate Activity | Espinosa Road    
Business Acquisition [Line Items]    
Total Purchase Price   246,472
In-place Leases | 2015 New Real Estate Activity | Parrish Road    
Business Acquisition [Line Items]    
Total Purchase Price   54,405
In-place Leases | 2015 New Real Estate Activity | Immokalee Exchange    
Business Acquisition [Line Items]    
Total Purchase Price   229,406
In-place Leases | 2015 New Real Estate Activity | Holt County    
Business Acquisition [Line Items]    
Total Purchase Price   0
In-place Leases | 2015 New Real Estate Activity | Rock County    
Business Acquisition [Line Items]    
Total Purchase Price   0
In-place Leases | 2015 New Real Estate Activity | Bear Mountain    
Business Acquisition [Line Items]    
Total Purchase Price   0
In-place Leases | 2015 New Real Estate Activity | Corbitt Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
In-place Leases | 2015 New Real Estate Activity | Reagan Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
Leasing Costs | 2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price 447,447  
Leasing Costs | 2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price 249,893  
Leasing Costs | 2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Leasing Costs | 2016 New Real Estate Activity | Orange Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Leasing Costs | 2016 New Real Estate Activity | Lithia Road    
Business Acquisition [Line Items]    
Total Purchase Price 16,265  
Leasing Costs | 2016 New Real Estate Activity | Baca County    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Leasing Costs | 2016 New Real Estate Activity | Diego Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 94,806  
Leasing Costs | 2016 New Real Estate Activity | Nevada Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 86,483  
Leasing Costs | 2016 New Real Estate Activity | Central Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Leasing Costs | 2016 New Real Estate Activity | Horse Creek    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Leasing Costs | 2015 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   326,394
Leasing Costs | 2015 New Real Estate Activity | Espinosa Road    
Business Acquisition [Line Items]    
Total Purchase Price   43,895
Leasing Costs | 2015 New Real Estate Activity | Parrish Road    
Business Acquisition [Line Items]    
Total Purchase Price   77,449
Leasing Costs | 2015 New Real Estate Activity | Immokalee Exchange    
Business Acquisition [Line Items]    
Total Purchase Price   148,691
Leasing Costs | 2015 New Real Estate Activity | Holt County    
Business Acquisition [Line Items]    
Total Purchase Price   27,494
Leasing Costs | 2015 New Real Estate Activity | Rock County    
Business Acquisition [Line Items]    
Total Purchase Price   28,865
Leasing Costs | 2015 New Real Estate Activity | Bear Mountain    
Business Acquisition [Line Items]    
Total Purchase Price   0
Leasing Costs | 2015 New Real Estate Activity | Corbitt Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
Leasing Costs | 2015 New Real Estate Activity | Reagan Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
Tenant Relationships | 2015 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   396,457
Tenant Relationships | 2015 New Real Estate Activity | Espinosa Road    
Business Acquisition [Line Items]    
Total Purchase Price   180,788
Tenant Relationships | 2015 New Real Estate Activity | Parrish Road    
Business Acquisition [Line Items]    
Total Purchase Price   35,892
Tenant Relationships | 2015 New Real Estate Activity | Immokalee Exchange    
Business Acquisition [Line Items]    
Total Purchase Price   179,777
Tenant Relationships | 2015 New Real Estate Activity | Holt County    
Business Acquisition [Line Items]    
Total Purchase Price   0
Tenant Relationships | 2015 New Real Estate Activity | Rock County    
Business Acquisition [Line Items]    
Total Purchase Price   0
Tenant Relationships | 2015 New Real Estate Activity | Bear Mountain    
Business Acquisition [Line Items]    
Total Purchase Price   0
Tenant Relationships | 2015 New Real Estate Activity | Corbitt Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
Tenant Relationships | 2015 New Real Estate Activity | Reagan Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
Above (Below)- Market Leases | 2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price (582,465)  
Above (Below)- Market Leases | 2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Above (Below)- Market Leases | 2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Above (Below)- Market Leases | 2016 New Real Estate Activity | Orange Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Above (Below)- Market Leases | 2016 New Real Estate Activity | Lithia Road    
Business Acquisition [Line Items]    
Total Purchase Price (9,075)  
Above (Below)- Market Leases | 2016 New Real Estate Activity | Baca County    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Above (Below)- Market Leases | 2016 New Real Estate Activity | Diego Ranch    
Business Acquisition [Line Items]    
Total Purchase Price (316,447)  
Above (Below)- Market Leases | 2016 New Real Estate Activity | Nevada Ranch    
Business Acquisition [Line Items]    
Total Purchase Price (256,943)  
Above (Below)- Market Leases | 2016 New Real Estate Activity | Central Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Above (Below)- Market Leases | 2016 New Real Estate Activity | Horse Creek    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Above (Below)- Market Leases & (Deferred Revenue) | 2015 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   (152,603)
Above (Below)- Market Leases & (Deferred Revenue) | 2015 New Real Estate Activity | Espinosa Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
Above (Below)- Market Leases & (Deferred Revenue) | 2015 New Real Estate Activity | Parrish Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
Above (Below)- Market Leases & (Deferred Revenue) | 2015 New Real Estate Activity | Immokalee Exchange    
Business Acquisition [Line Items]    
Total Purchase Price   0
Above (Below)- Market Leases & (Deferred Revenue) | 2015 New Real Estate Activity | Holt County    
Business Acquisition [Line Items]    
Total Purchase Price   0
Above (Below)- Market Leases & (Deferred Revenue) | 2015 New Real Estate Activity | Rock County    
Business Acquisition [Line Items]    
Total Purchase Price   0
Above (Below)- Market Leases & (Deferred Revenue) | 2015 New Real Estate Activity | Bear Mountain    
Business Acquisition [Line Items]    
Total Purchase Price   0
Above (Below)- Market Leases & (Deferred Revenue) | 2015 New Real Estate Activity | Corbitt Road    
Business Acquisition [Line Items]    
Total Purchase Price   (152,603)
Above (Below)- Market Leases & (Deferred Revenue) | 2015 New Real Estate Activity | Reagan Road    
Business Acquisition [Line Items]    
Total Purchase Price   0
Land and Land Improvements | 2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price 73,350,904  
Land and Land Improvements | 2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price 16,755,814  
Land and Land Improvements | 2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 3,615,436  
Land and Land Improvements | 2016 New Real Estate Activity | Orange Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 4,135,741  
Land and Land Improvements | 2016 New Real Estate Activity | Lithia Road    
Business Acquisition [Line Items]    
Total Purchase Price 1,461,090  
Land and Land Improvements | 2016 New Real Estate Activity | Baca County    
Business Acquisition [Line Items]    
Total Purchase Price 6,111,287  
Land and Land Improvements | 2016 New Real Estate Activity | Diego Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 14,114,337  
Land and Land Improvements | 2016 New Real Estate Activity | Nevada Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 12,844,650  
Land and Land Improvements | 2016 New Real Estate Activity | Central Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 2,924,232  
Land and Land Improvements | 2016 New Real Estate Activity | Horse Creek    
Business Acquisition [Line Items]    
Total Purchase Price 11,388,317  
Land and Land Improvements | 2015 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   68,041,105
Land and Land Improvements | 2015 New Real Estate Activity | Espinosa Road    
Business Acquisition [Line Items]    
Total Purchase Price   15,852,466
Land and Land Improvements | 2015 New Real Estate Activity | Parrish Road    
Business Acquisition [Line Items]    
Total Purchase Price   2,403,064
Land and Land Improvements | 2015 New Real Estate Activity | Immokalee Exchange    
Business Acquisition [Line Items]    
Total Purchase Price   14,410,840
Land and Land Improvements | 2015 New Real Estate Activity | Holt County    
Business Acquisition [Line Items]    
Total Purchase Price   4,690,369
Land and Land Improvements | 2015 New Real Estate Activity | Rock County    
Business Acquisition [Line Items]    
Total Purchase Price   4,862,314
Land and Land Improvements | 2015 New Real Estate Activity | Bear Mountain    
Business Acquisition [Line Items]    
Total Purchase Price   18,428,247
Land and Land Improvements | 2015 New Real Estate Activity | Corbitt Road    
Business Acquisition [Line Items]    
Total Purchase Price   3,186,765
Land and Land Improvements | 2015 New Real Estate Activity | Reagan Road    
Business Acquisition [Line Items]    
Total Purchase Price   4,207,040
Buildings and Improvements | 2016 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price 3,690,290  
Buildings and Improvements | 2016 New Real Estate Activity | Gunbarrel Road    
Business Acquisition [Line Items]    
Total Purchase Price 3,438,291  
Buildings and Improvements | 2016 New Real Estate Activity | Calaveras Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Buildings and Improvements | 2016 New Real Estate Activity | Orange Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 29,777  
Buildings and Improvements | 2016 New Real Estate Activity | Lithia Road    
Business Acquisition [Line Items]    
Total Purchase Price 10,656  
Buildings and Improvements | 2016 New Real Estate Activity | Baca County    
Business Acquisition [Line Items]    
Total Purchase Price 211,566  
Buildings and Improvements | 2016 New Real Estate Activity | Diego Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Buildings and Improvements | 2016 New Real Estate Activity | Nevada Ranch    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Buildings and Improvements | 2016 New Real Estate Activity | Central Avenue    
Business Acquisition [Line Items]    
Total Purchase Price 0  
Buildings and Improvements | 2016 New Real Estate Activity | Horse Creek    
Business Acquisition [Line Items]    
Total Purchase Price $ 0  
Buildings and Improvements | 2015 New Real Estate Activity    
Business Acquisition [Line Items]    
Total Purchase Price   802,018
Buildings and Improvements | 2015 New Real Estate Activity | Espinosa Road    
Business Acquisition [Line Items]    
Total Purchase Price   84,478
Buildings and Improvements | 2015 New Real Estate Activity | Parrish Road    
Business Acquisition [Line Items]    
Total Purchase Price   42,619
Buildings and Improvements | 2015 New Real Estate Activity | Immokalee Exchange    
Business Acquisition [Line Items]    
Total Purchase Price   273,107
Buildings and Improvements | 2015 New Real Estate Activity | Holt County    
Business Acquisition [Line Items]    
Total Purchase Price   56,253
Buildings and Improvements | 2015 New Real Estate Activity | Rock County    
Business Acquisition [Line Items]    
Total Purchase Price   72,232
Buildings and Improvements | 2015 New Real Estate Activity | Bear Mountain    
Business Acquisition [Line Items]    
Total Purchase Price   0
Buildings and Improvements | 2015 New Real Estate Activity | Corbitt Road    
Business Acquisition [Line Items]    
Total Purchase Price   254,963
Buildings and Improvements | 2015 New Real Estate Activity | Reagan Road    
Business Acquisition [Line Items]    
Total Purchase Price   $ 18,366