XML 17 R25.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Real Estate and Intangible Assets - Additional Information (Detail) |  |  |  |  |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 01, 2015 USD ($) | Jun. 30, 2015 USD ($) a Farm Agreement | Jun. 17, 2015 USD ($) a | Apr. 13, 2015 USD ($) Renewal_Options | Apr. 08, 2015 USD ($) | Feb. 23, 2015 USD ($) Renewal_Options | Feb. 09, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) a | Mar. 31, 2015 USD ($) | Jun. 30, 2014 USD ($) a | Jun. 30, 2015 USD ($) a Farm | Jun. 30, 2014 USD ($) a Farm | Dec. 31, 2014 USD ($) Farm
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Farms | Farm |  | 36 |  |  |  |  |  |  |  |  |  | 36 | 26 |
Aggregate annual real estate property taxes |  | $ 1,442,000 |  |  |  |  |  |  |  |  |  |  |  |
Payables for real estate property taxes |  | 595,000 |  |  |  |  |  |  | $ 595,000 |  |  | $ 595,000 |  |
Number of farms acquired in separate transaction | Farm |  |  |  |  |  |  |  |  |  |  |  | 4 | 5 |
Line of credit |  | $ 2,800,000 |  |  |  |  |  |  | 2,800,000 |  |  | $ 2,800,000 |  | $ 4,000,000
Number of Farms | Farm |  |  |  |  |  |  |  |  |  |  |  | 4 |  | 11
Rental income |  |  |  |  |  |  |  |  | 2,780,456 |  | $ 1,561,291 | $ 5,402,783 | $ 3,056,927 |
Property and casualty loss |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 232,737
Insurance proceeds |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 495,700
Amortization expense related to intangibles assets |  |  |  |  |  |  |  |  | 172,678 |  | 33,540 | 451,796 | 62,008 |
Amortization of acquired above market lease values |  |  |  |  |  |  |  |  | 5,395 |  | 461 | 10,790 | 461 |
Accretion of acquired below market lease values |  |  |  |  |  |  |  |  | $ 52,590 |  | $ 20,980 | $ 107,733 | $ 40,874 |
Percent of total rental revenue |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |
Area leased | a |  | 11,467 |  |  |  |  |  |  | 11,467 |  | 6,439 | 11,467 | 6,439 |
Area leased, percentage |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |
California [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Farms | Farm |  | 15 |  |  |  |  |  |  |  |  |  | 15 | 9 |
Rental income |  |  |  |  |  |  |  |  |  |  |  | $ 3,712,894 | $ 2,051,017 |
Percent of total rental revenue |  |  |  |  |  |  |  |  |  |  |  | 68.70% | 67.10% |
Area leased | a |  | 2,722 |  |  |  |  |  |  | 2,722 |  | 1,599 | 2,722 | 1,599 |
Area leased, percentage |  | 23.70% |  |  |  |  |  |  |  |  |  | 23.70% | 24.80% |
Florida [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Farms | Farm |  | 12 |  |  |  |  |  |  |  |  |  | 12 | 8 |
Rental income |  |  |  |  |  |  |  |  |  |  |  | $ 820,834 | $ 240,304 |
Percent of total rental revenue |  |  |  |  |  |  |  |  |  |  |  | 15.20% | 7.90% |
Area leased | a |  | 4,401 |  |  |  |  |  |  | 4,401 |  | 496 | 4,401 | 496 |
Area leased, percentage |  | 38.40% |  |  |  |  |  |  |  |  |  | 38.40% | 7.70% |
Oregon [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Farms | Farm |  |  |  |  |  |  |  |  |  |  |  | 4 | 4 |
Rental income |  |  |  |  |  |  |  |  |  |  |  | $ 583,763 | $ 492,121 |
Percent of total rental revenue |  |  |  |  |  |  |  |  |  |  |  | 10.80% | 16.10% |
Area leased | a |  | 2,313 |  |  |  |  |  |  | 2,313 |  | 2,313 | 2,313 | 2,313 |
Area leased, percentage |  |  |  |  |  |  |  |  |  |  |  | 20.20% | 35.90% |
Maximum [Member] | Geographic Concentration Risk [Member] | Rental Income [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of individual tenant represented total rental revenue recorded |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |
Dole Food Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rental income |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000 |  |
Total number of lease agreement with single tenant | Agreement |  | 2 |  |  |  |  |  |  |  |  |  |  |  |
Percent of total rental revenue |  |  |  |  |  |  |  |  |  |  |  | 27.30% | 46.50% |
Dole Food Company [Member] | Maximum [Member] | Customer Concentration Risk [Member] | Rental Income [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of individual tenant represented total rental revenue recorded |  |  |  |  |  |  |  |  |  |  |  | 10.00% | 10.00% |
Separate Tenant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of total rental revenue |  |  |  |  |  |  |  |  |  |  |  | 11.70% |  |
Active Purchase and Sale Agreements [Member] | California [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Area leased | a |  |  | 841 |  |  |  |  |  |  |  |  |  |  |
Total purchase price |  |  | $ 18,900,000 |  |  |  |  |  |  |  |  |  |  |
Purchase property expected to close date |  |  |  |  |  |  |  |  |  |  |  | Sep. 30, 2015 |  |
MetLife [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit |  | $ 2,800,000 |  |  |  |  |  |  | $ 2,800,000 |  | $ 3,000,000 | $ 2,800,000 | $ 3,000,000 |
Land, Buildings, Improvements and Horticulture [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate depreciation expense |  |  |  |  |  |  |  |  | 539,125 |  | $ 296,946 | $ 1,051,639 | $ 556,509 |
Scenario, Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reduction in annual real estate property taxes | $ 171,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Keysville Road [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date of lease |  |  |  |  |  |  |  |  |  |  |  | Jun. 30, 2020 |  |
Rental income |  |  |  |  |  |  | $ 73,749 |  |  |  |  |  |  |
Percentage increase in lease amount |  |  |  |  |  |  | 7.90% |  |  |  |  |  |  |
Write-off of deferred rent asset balances and rental income related to terminated lease |  |  |  |  |  |  |  |  |  | $ 32,497 |  |  |  |
Spring Valley [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date of lease |  |  |  |  |  |  |  |  |  |  |  | Sep. 30, 2022 |  |
Rental income |  |  |  |  |  | $ 327,904 |  |  |  |  |  |  |  |
Percentage increase in lease amount |  |  |  |  |  | 32.50% |  |  |  |  |  |  |  |
Lease renewal term |  |  |  |  |  | 6 years |  |  |  |  |  |  |  |
Number of options granted to extend the lease | Renewal_Options |  |  |  |  |  | 2 |  |  |  |  |  |  |  |
Additional extension period of under the option of tenant |  |  |  |  |  | 6 years |  |  |  |  |  |  |  |
Dalton Lane [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date of lease |  |  |  |  |  |  |  |  |  |  |  | Oct. 31, 2020 |  |
Rental income |  |  |  | $ 163,989 |  |  |  |  |  |  |  |  |  |
Percentage increase in lease amount |  |  |  | 16.80% |  |  |  |  |  |  |  |  |  |
Lease renewal term |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |
Number of options granted to extend the lease | Renewal_Options |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Additional extension period of under the option of tenant |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |
Santa Clara Avenue [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date of lease |  |  |  |  |  |  |  |  |  |  |  | Jul. 31, 2017 |  |
Rental income |  |  |  |  | $ 1,302,783 |  |  |  |  |  |  |  |  |
Percentage increase in lease amount |  |  |  |  | 5.80% |  |  |  |  |  |  |  |  |
Lease renewal term |  |  |  |  | 2 years |  |  |  |  |  |  |  |  |
West Gonzales [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total repair cost |  |  |  |  |  |  |  |  |  | 35,648 |  |  |  |
Repair cost, capitalized as real estate |  |  |  |  |  |  |  |  |  | 25,682 |  |  |  |
Repair and maintenance expense |  |  |  |  |  |  |  |  |  | $ 9,966 |  |  |  |
West Gonzales [Member] | Property And Casualty Recovery [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Insurance proceeds |  |  |  |  |  |  |  |  | $ 20,809 |  |  |  |  |
West Gonzales [Member] | Scenario, Forecast [Member] | Property And Casualty Recovery [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Insurance proceeds |  |  |  |  |  |  |  | $ 76,423 |  |  |  |  |  |

X
- Definition Accretion of below market lease. + References No definition available. + Details
Name: | land_AccretionOfBelowMarketLease
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amortization of Above Market Lease + References No definition available. + Details
Name: | land_AmortizationOfAboveMarketLease
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Asset purchase agreement closing date. + References No definition available. + Details
Name: | land_AssetPurchaseAgreementClosingDate
Namespace Prefix: | land_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Deferred rent asset balance and rental income written off on lease termination. + References No definition available. + Details
Name: | land_DeferredRentAssetBalanceAndRentalIncomeWrittenOffOnLeaseTermination
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Lessee leasing arrangements operating leases additional extension term. + References No definition available. + Details
Name: | land_LesseeLeasingArrangementsOperatingLeasesAdditionalExtensionTerm
Namespace Prefix: | land_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of farms acquired. + References No definition available. + Details
Name: | land_NumberOfFarmsAcquired
Namespace Prefix: | land_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of farms acquired not covered under business combination. + References No definition available. + Details
Name: | land_NumberOfFarmsAcquiredNotCoveredUnderBusinessCombination
Namespace Prefix: | land_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of lease with single tenant. + References No definition available. + Details
Name: | land_NumberOfLeaseWithSingleTenant
Namespace Prefix: | land_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of real estate farms. + References No definition available. + Details
Name: | land_NumberOfRealEstateFarms
Namespace Prefix: | land_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating leases number of options to extend lease. + References No definition available. + Details
Name: | land_OperatingLeasesNumberOfOptionsToExtendLease
Namespace Prefix: | land_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage increment in lease payments. + References No definition available. + Details
Name: | land_PercentageIncrementInLeasePayments
Namespace Prefix: | land_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of area of land. + References No definition available. + Details
Name: | land_PercentageOfAreaOfLand
Namespace Prefix: | land_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of rental revenue. + References No definition available. + Details
Name: | land_PercentageOfRentalRevenue
Namespace Prefix: | land_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Real estate repair cost capitalized. + References No definition available. + Details
Name: | land_RealEstateRepairCostCapitalized
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Repairs and maintenance costs. + References No definition available. + Details
Name: | land_RepairsAndMaintenanceCosts
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6419918&loc=d3e35281-107843 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Area of a real estate property. + References No definition available. + Details
Name: | us-gaap_AreaOfRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The aggregate costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_CostOfPropertyRepairsAndMaintenance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
Name: | us-gaap_Depreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase (decrease) during the period in the amount of cash payments due to taxing authorities for non-income-related taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
Name: | us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Date which lease or group of leases is set to expire, in CCYY-MM-DD format. + References No definition available. + Details
Name: | us-gaap_LeaseExpirationDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Term of the lessor's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_LessorLeasingArrangementsOperatingLeasesRenewalTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The charge against earnings in the period for the uninsured portion of a loss from a fire, explosion, or natural disaster (hurricane, earthquake). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_LossFromCatastrophes
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707 + Details
Name: | us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition A tax based on the assessed value of real estate by the local government. The tax is usually based on the value of property (including the land). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6419918&loc=d3e35301-107843 + Details
Name: | us-gaap_RealEstateTaxExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The gross income statement effect of insurance proceeds for each material event or transaction (that would not reasonably be expected to recur in the foreseeable future) that possesses a high degree of abnormality and are clearly unrelated to, or incidentally related to, the ordinary and typical activities of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6365513&loc=d3e15138-107781 + Details
Name: | us-gaap_UnusualOrInfrequentItemInsuranceProceeds
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_FL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_OR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_GeographicConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=land_RentalIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CounterpartyNameAxis=land_DoleFoodCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CounterpartyNameAxis=land_SeparateTenantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=land_PurchaseAndSaleAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_MetlifeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandAndBuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_KeysvilleRoadMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_SpringValleyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_DaltonLaneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_SantaClaraAvenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_WestGonzalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=land_PropertyAndCasualtyRecoveryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |