Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Summary of Components of Investments in Real Estate (Detail)

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Real Estate and Intangible Assets - Summary of Components of Investments in Real Estate (Detail) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Real estate:    
Land and land improvements $ 141,476,576us-gaap_LandAndLandImprovements $ 122,999,316us-gaap_LandAndLandImprovements
Irrigation systems 15,300,699land_IrrigationEquipmentSystem 12,365,514land_IrrigationEquipmentSystem
Buildings and improvements 11,596,388us-gaap_InvestmentBuildingAndBuildingImprovements 11,447,308us-gaap_InvestmentBuildingAndBuildingImprovements
Horticulture 1,559,340land_RealEstateAndAccumulatedDepreciationCarryingAmountOfHorticulture 1,559,340land_RealEstateAndAccumulatedDepreciationCarryingAmountOfHorticulture
Real estate, gross 169,933,003us-gaap_RealEstateInvestmentPropertyAtCost 148,371,478us-gaap_RealEstateInvestmentPropertyAtCost
Accumulated depreciation (4,943,804)us-gaap_RealEstateAccumulatedDepreciation (4,431,290)us-gaap_RealEstateAccumulatedDepreciation
Real estate, net $ 164,989,199us-gaap_RealEstateInvestmentPropertyNet $ 143,940,188us-gaap_RealEstateInvestmentPropertyNet