Annual report pursuant to Section 13 and 15(d)

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

v2.4.1.9
Real Estate and Lease Intangibles - Summary Information of Thirty-Two Farms (Detail) (USD $)
 0 Months Ended 12 Months Ended 0 Months Ended
Sep. 30, 2014
Farm
Dec. 31, 2014
Farm
acre
Dec. 31, 2013
Farm
acre
Jun. 17, 2014
Mar. 27, 2014
Real Estate Properties [Line Items]          
Number of Farms 32land_NumberOfFarms 32land_NumberOfFarms 21land_NumberOfFarms    
Total Acres   8,039us-gaap_AreaOfRealEstateProperty 6,000us-gaap_AreaOfRealEstateProperty    
Farm Acres   6,637land_FarmableAreaOfLand      
Net Cost Basis   $ 145,257,763land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet      
Encumbrances   86,417,361us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances      
San Andreas [Member]          
Real Estate Properties [Line Items]          
Lease Expiration Date       Dec. 31, 2020  
San Andreas [Member] | Watsonville, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jun. 16, 1997      
Number of Farms   1land_NumberOfFarms
/ 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 		     
Farm Acres   238land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCaMember 		     
Lease Expiration Date   Dec. 31, 2020      
Net Cost Basis   4,826,248land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SanAndreasMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCaMember 		     
Encumbrances   4,220,586us-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_NumberOfFarms
/ 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 		     
Farm Acres   502land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Lease Expiration Date   Jun. 30, 2020      
Net Cost Basis   12,406,298land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Encumbrances   21,473,134us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_WestGonzalesMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
West Beach [Member]          
Real Estate Properties [Line Items]          
Lease Expiration Date         Dec. 31, 2023
West Beach [Member] | Watsonville, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jan. 03, 2011      
Number of Farms   3land_NumberOfFarms
/ 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 		     
Farm Acres   195land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCaMember 		     
Lease Expiration Date   Dec. 31, 2023      
Net Cost Basis   8,979,337land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_WestBeachMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCaMember 		     
Encumbrances   4,111,433us-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_NumberOfFarms
/ 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 		     
Farm Acres   70land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCaMember 		     
Lease Expiration Date   Nov. 01, 2015      
Net Cost Basis   2,700,026land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCaMember 		     
Encumbrances   1,362,231us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstatePropertiesAxis
= land_DaltonLaneMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCaMember 		     
Keysville Road [Member] | Plant City, FL [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Oct. 26, 2011      
Number of Farms   2land_NumberOfFarms
/ 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 		     
Farm Acres   50land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_KeysvilleRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Lease Expiration Date   Jul. 01, 2016      
Net Cost Basis   1,232,260land_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_NumberOfFarms
/ 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 		     
Farm Acres   181land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_ColdingLoopMember
/ us-gaap_StatementGeographicalAxis
= land_WimaumaFlMember 		     
Lease Expiration Date   Jun. 14, 2018      
Net Cost Basis   3,925,704land_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_NumberOfFarms
/ 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 		     
Farm Acres   110land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_TrapnellRoadMember
/ us-gaap_StatementGeographicalAxis
= land_PlantCityFlMember 		     
Lease Expiration Date   Jun. 30, 2017      
Net Cost Basis   4,106,218land_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 		     
38th Avenue [Member] | Covert, MI [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Apr. 05, 2013      
Number of Farms   1land_NumberOfFarms
/ 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 		     
Farm Acres   89land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		     
Lease Expiration Date   Apr. 04, 2020      
Net Cost Basis   1,449,670land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_ThirtyEightAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_CovertMiMember 		     
Encumbrances   650,552us-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_NumberOfFarms
/ 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 		     
Farm Acres   206land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		     
Lease Expiration Date   May 31, 2028      
Net Cost Basis   3,521,564land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SequoiaStreetMember
/ us-gaap_StatementGeographicalAxis
= land_BrooksOrMember 		     
Encumbrances   1,503,888us-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_NumberOfFarms
/ 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 		     
Farm Acres   166land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Lease Expiration Date   Oct. 31, 2024      
Net Cost Basis   7,398,003land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_NatividadRoadMember
/ us-gaap_StatementGeographicalAxis
= land_SalinasCaMember 		     
Encumbrances   3,395,874us-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_NumberOfFarms
/ 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 		     
Farm Acres   94land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		     
Lease Expiration Date   Apr. 11, 2018      
Net Cost Basis   1,884,981land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_TwentiethAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_SouthHavenMiMember 		     
Encumbrances   970,250us-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_NumberOfFarms
/ 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 		     
Farm Acres   60land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		     
Lease Expiration Date   Dec. 15, 2023      
Net Cost Basis   2,935,348land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_BroadwayRoadMember
/ us-gaap_StatementGeographicalAxis
= land_MoorparkCaMember 		     
Encumbrances   1,455,375us-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_NumberOfFarms
/ 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 		     
Farm Acres   1,640land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		     
Lease Expiration Date   Dec. 31, 2023      
Net Cost Basis   13,993,009land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_OregonTrailMember
/ us-gaap_StatementGeographicalAxis
= land_EchoORMember 		     
Encumbrances   6,791,748us-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_NumberOfFarms
/ 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 		     
Farm Acres   1,320land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		     
Lease Expiration Date   Feb. 29, 2024      
Net Cost Basis   7,760,059land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_EastSheltonMember
/ us-gaap_StatementGeographicalAxis
= land_WillcoxAZMember 		     
Encumbrances   3,250,336us-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_NumberOfFarms
/ 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 		     
Farm Acres   157land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		     
Lease Expiration Date   Sep. 30, 2024      
Net Cost Basis   2,532,950land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_CollinsRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ClatskanieOrMember 		     
Spring Valley [Member] | Watsonville, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jun. 13, 2014      
Number of Farms   1land_NumberOfFarms
/ 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 		     
Farm Acres   110land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCaMember 		     
Lease Expiration Date   Sep. 30, 2016      
Net Cost Basis   5,882,738land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SpringValleyMember
/ us-gaap_StatementGeographicalAxis
= land_WatsonvilleCaMember 		     
Encumbrances   2,862,237us-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_NumberOfFarms
/ 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 		     
Farm Acres   78land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_McintoshRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DoverFlMember 		     
Lease Expiration Date   Jun. 30, 2017      
Net Cost Basis   2,553,874land_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 		     
Naumann Road [Member] | Oxnard, CA [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Jul. 23, 2014      
Number of Farms   1land_NumberOfFarms
/ 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 		     
Farm Acres   64land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Lease Expiration Date   Jul. 31, 2017      
Net Cost Basis   6,859,860land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_NaumannRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Encumbrances   3,342,510us-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_NumberOfFarms
/ 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 		     
Farm Acres   322land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		     
Lease Expiration Date   Oct. 31, 2024      
Net Cost Basis   5,939,523land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SycamoreRoadMember
/ us-gaap_StatementGeographicalAxis
= land_ArvinCaMember 		     
Encumbrances   2,813,724us-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 		     
Wauchula Road [Member] | Duette, FL [Member]          
Real Estate Properties [Line Items]          
Acquisition Date   Sep. 29, 2014      
Number of Farms   1land_NumberOfFarms
/ 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 		     
Farm Acres   590land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Lease Expiration Date   Sep. 30, 2024      
Net Cost Basis   13,772,371land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_WauchulaRoadMember
/ us-gaap_StatementGeographicalAxis
= land_DuetteFlMember 		     
Encumbrances   8,155,762us-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_NumberOfFarms
/ 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 		     
Farm Acres   331land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Lease Expiration Date   Jul. 31, 2015      
Net Cost Basis   24,497,797land_SecScheduleIiiRealEstateInvestmentPropertyIncludingIntangibleAssetsNet
/ us-gaap_RealEstatePropertiesAxis
= land_SantaClaraAvenueMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Encumbrances   12,128,121us-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_NumberOfFarms
/ 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 		     
Farm Acres   64land_FarmableAreaOfLand
/ us-gaap_RealEstatePropertiesAxis
= land_DufauRoadMember
/ us-gaap_StatementGeographicalAxis
= land_OxnardCaMember 		     
Lease Expiration Date   Nov. 03, 2017      
Net Cost Basis   6,099,925land_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