Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Summary Information of Thirty-Four Farms (Detail)

v2.4.1.9
Real Estate and Intangible Assets - Summary Information of Thirty-Four Farms (Detail) (USD $)
 0 Months Ended 3 Months Ended 0 Months Ended
Mar. 31, 2015
Farm
acre
Mar. 31, 2015
Farm
acre
Mar. 31, 2014
Farm
acre
Feb. 09, 2015
Feb. 23, 2015
Real Estate Properties [Line Items]          
Number of Farms 34land_NumberOfRealEstateFarms 34land_NumberOfRealEstateFarms 21land_NumberOfRealEstateFarms    
Total Acres 8,789us-gaap_AreaOfRealEstateProperty 8,789us-gaap_AreaOfRealEstateProperty 6,000us-gaap_AreaOfRealEstateProperty    
Farm Acres 7,185land_FarmableAreaOfLand 7,185land_FarmableAreaOfLand      
Net Cost Basis $ 166,054,114land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet $ 166,054,114land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet      
Encumbrances 106,666,803us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances 106,666,803us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances      
San Andreas [Member] | Watsonville, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jun. 16, 1997      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Total Acres 307us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		307us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Farm Acres 238land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		238land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Lease Expiration Date   Dec. 31, 2020      
Net Cost Basis 4,816,348land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		4,816,348land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Encumbrances 4,602,937us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		4,602,937us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
West Gonzales [Member] | Oxnard, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Sep. 15, 1998      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Total Acres 653us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		653us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Farm Acres 502land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		502land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Lease Expiration Date   Jun. 30, 2020      
Net Cost Basis 12,365,304land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		12,365,304land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Encumbrances 23,418,424us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		23,418,424us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
West Beach [Member] | Watsonville, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jan. 03, 2011      
Number of Farms   3land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Total Acres 196us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		196us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Farm Acres 195land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		195land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Lease Expiration Date   Dec. 31, 2023      
Net Cost Basis 9,165,426land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		9,165,426land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Encumbrances 4,483,895us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		4,483,895us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Dalton Lane [Member] | Watsonville, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jul. 07, 2011      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Total Acres 72us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		72us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Farm Acres 70land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		70land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Lease Expiration Date   Nov. 01, 2015      
Net Cost Basis 2,693,926land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		2,693,926land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Encumbrances 1,485,638us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		1,485,638us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Keysville Road [Member]          
Real Estate Properties [Line Items]          
Lease Expiration Date       Jun. 30, 2020  
Keysville Road [Member] | Plant City, FL [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Oct. 26, 2011      
Number of Farms   2land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_KeysvilleRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Total Acres 59us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_KeysvilleRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		59us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_KeysvilleRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Farm Acres 56land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_KeysvilleRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		56land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_KeysvilleRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Lease Expiration Date   Jun. 30, 2020      
Net Cost Basis 1,241,700land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_KeysvilleRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		1,241,700land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_KeysvilleRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Colding Loop [Member] | Wimauma, FL [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Aug. 09, 2012      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_ColdingLoopMember
/ us-gaap_StatementGeographicalAxis
= land_WimaumaFlMember 		     
Total Acres 219us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_ColdingLoopMember
/ us-gaap_StatementGeographicalAxis
= land_WimaumaFlMember 		219us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_ColdingLoopMember
/ us-gaap_StatementGeographicalAxis
= land_WimaumaFlMember 		     
Farm Acres 181land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_ColdingLoopMember
/ us-gaap_StatementGeographicalAxis
= land_WimaumaFlMember 		181land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_ColdingLoopMember
/ us-gaap_StatementGeographicalAxis
= land_WimaumaFlMember 		     
Lease Expiration Date   Jun. 14, 2018      
Net Cost Basis 4,029,515land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_ColdingLoopMember
/ us-gaap_StatementGeographicalAxis
= land_WimaumaFlMember 		4,029,515land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_ColdingLoopMember
/ us-gaap_StatementGeographicalAxis
= land_WimaumaFlMember 		     
Trapnell Road [Member] | Plant City, FL [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Sep. 12, 2012      
Number of Farms   3land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Total Acres 124us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		124us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Farm Acres 110land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		110land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Lease Expiration Date   Jun. 30, 2017      
Net Cost Basis 4,065,630land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		4,065,630land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Encumbrances 2,655,000us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		2,655,000us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
38th Avenue [Member] | Covert, MI [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Apr. 05, 2013      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		     
Total Acres 119us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		119us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		     
Farm Acres 89land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		89land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		     
Lease Expiration Date   Apr. 04, 2020      
Net Cost Basis 1,303,310land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		1,303,310land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		     
Encumbrances 709,487us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		709,487us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		     
Sequoia Street [Member] | Brooks, OR [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   May 31, 2013      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		     
Total Acres 218us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		218us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		     
Farm Acres 206land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		206land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		     
Lease Expiration Date   May 31, 2028      
Net Cost Basis 3,137,348land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		3,137,348land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		     
Encumbrances 1,640,128us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		1,640,128us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		     
Natividad Road [Member] | Salinas, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Oct. 21, 2013      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Total Acres 166us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		166us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Farm Acres 166land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		166land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Lease Expiration Date   Oct. 31, 2024      
Net Cost Basis 7,402,759land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		7,402,759land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Encumbrances 3,703,512us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		3,703,512us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
20th Avenue [Member] | South Haven, MI [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Nov. 05, 2013      
Number of Farms   3land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		     
Total Acres 151us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		151us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		     
Farm Acres 94land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		94land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		     
Lease Expiration Date   Nov. 04, 2018      
Net Cost Basis 1,856,169land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		1,856,169land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		     
Encumbrances 1,058,146us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		1,058,146us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		     
Broadway Road [Member] | Moorpark, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Dec. 16, 2013      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		     
Total Acres 60us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		60us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		     
Farm Acres 60land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		60land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		     
Lease Expiration Date   Dec. 15, 2023      
Net Cost Basis 2,913,225land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		2,913,225land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		     
Encumbrances 1,587,220us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		1,587,220us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		     
Oregon Trail [Member] | Echo, OR [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Dec. 27, 2013      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		     
Total Acres 1,895us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		1,895us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		     
Farm Acres 1,640land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		1,640land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		     
Lease Expiration Date   Dec. 31, 2023      
Net Cost Basis 13,974,147land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		13,974,147land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		     
Encumbrances 7,407,024us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		7,407,024us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		     
East Shelton [Member] | Willcox, AZ [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Dec. 27, 2013      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		     
Total Acres 1,761us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		1,761us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		     
Farm Acres 1,320land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		1,320land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		     
Lease Expiration Date   Feb. 29, 2024      
Net Cost Basis 8,099,226land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		8,099,226land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		     
Encumbrances 3,544,790us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		3,544,790us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		     
Collins Road [Member] | Clatskanie, OR [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   May 30, 2014      
Number of Farms   2land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		     
Total Acres 200us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		200us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		     
Farm Acres 157land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		157land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		     
Lease Expiration Date   Sep. 30, 2024      
Net Cost Basis 2,505,615land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		2,505,615land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		     
Encumbrances 1,428,498us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		1,428,498us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		     
Spring Valley [Member]          
Real Estate Properties [Line Items]          
Lease Expiration Date         Sep. 30, 2022
Spring Valley [Member] | Watsonville, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jun. 13, 2014      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Total Acres 145us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		145us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Farm Acres 110land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		110land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Lease Expiration Date   Sep. 30, 2022      
Net Cost Basis 5,822,169land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		5,822,169land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
Encumbrances 3,121,532us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		3,121,532us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCAMember 		     
McIntosh Road [Member] | Dover, FL [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jun. 20, 2014      
Number of Farms   2land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		     
Total Acres 94us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		94us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		     
Farm Acres 78land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		78land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		     
Lease Expiration Date   Jun. 30, 2017      
Net Cost Basis 2,572,587land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		2,572,587land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		     
Encumbrances 1,599,600us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		1,599,600us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		     
Naumann Road [Member] | Oxnard, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jul. 23, 2014      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Total Acres 68us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		68us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Farm Acres 66land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		66land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Lease Expiration Date   Jul. 31, 2017      
Net Cost Basis 6,840,538land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		6,840,538land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Encumbrances 3,645,314us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		3,645,314us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Sycamore Road [Member] | Arvin, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jul. 25, 2014      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		     
Total Acres 326us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		326us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		     
Farm Acres 322land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		322land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		     
Lease Expiration Date   Oct. 31, 2024      
Net Cost Basis 6,413,843land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		6,413,843land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		     
Encumbrances 3,068,624us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		3,068,624us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		     
Wauchula Road [Member]          
Real Estate Properties [Line Items]          
Farm Acres 590land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember 		590land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember 		     
Wauchula Road [Member] | Duette, FL [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Sep. 29, 2014      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Total Acres 808us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		808us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Farm Acres 590land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		590land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Lease Expiration Date   Sep. 30, 2024      
Net Cost Basis 13,646,802land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		13,646,802land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Encumbrances 8,052,525us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		8,052,525us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Santa Clara Avenue [Member] | Oxnard, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Oct. 29, 2014      
Number of Farms   2land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Total Acres 333us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		333us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Farm Acres 331land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		331land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Lease Expiration Date   Jul. 31, 2015      
Net Cost Basis 24,357,313land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		24,357,313land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Encumbrances 13,226,829us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		13,226,829us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Dufau Road [Member] | Oxnard, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Nov. 04, 2014      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Total Acres 65us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		65us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Farm Acres 64land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		64land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Lease Expiration Date   Nov. 03, 2017      
Net Cost Basis 6,105,791land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		6,105,791land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Encumbrances 3,675,000us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		3,675,000us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Espinosa Road [Member] | Salinas, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jan. 05, 2015      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_EspinosaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Total Acres 331us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_EspinosaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		331us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_EspinosaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Farm Acres 329land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_EspinosaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		329land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_EspinosaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Lease Expiration Date   Oct. 31, 2016      
Net Cost Basis 16,817,180land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_EspinosaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		16,817,180land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_EspinosaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Encumbrances 10,178,000us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_EspinosaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		10,178,000us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_EspinosaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Parrish Road [Member] | Duette, FL [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Mar. 10, 2015      
Number of Farms   1land_NumberOfRealEstateFarms
/ us-gaap_RealEstatePropertiesAxis
= land_ParrishRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Total Acres 419us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_ParrishRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		419us-gaap_AreaOfRealEstateProperty
/ us-gaap_RealEstatePropertiesAxis
= land_ParrishRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Farm Acres 211land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_ParrishRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		211land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_ParrishRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Lease Expiration Date   Jun. 30, 2025      
Net Cost Basis 3,908,243land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_ParrishRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		3,908,243land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_ParrishRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Encumbrances $ 2,374,680us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_ParrishRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		$ 2,374,680us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_ParrishRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember