Gladstone Land Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Organization And Summary Of Significant Accounting Policies [Line Items]
Amortization of acquired above market lease values	$ 14,422land_AmortizationOfAboveMarketLease		$ 9,027land_AmortizationOfAboveMarketLease
Accumulated amortization of acquired above market lease values	5,395
Accumulated amortization of acquired below market lease values	217,337	162,194	162,194
Amortization of acquired below market lease values	55,143us-gaap_AmortizationOfBelowMarketLease	19,984us-gaap_AmortizationOfBelowMarketLease
Amortization expense related to intangibles assets	279,118us-gaap_AmortizationOfIntangibleAssets	28,468us-gaap_AmortizationOfIntangibleAssets
Impairments recognized on real estate	0us-gaap_ImpairmentOfRealEstate
Tenant improvements	582,247us-gaap_TenantImprovements		582,247us-gaap_TenantImprovements
Accrued interest on escrow funds	510us-gaap_IncreaseInRestrictedCash		3,041us-gaap_IncreaseInRestrictedCash
Restricted cash funds released date	Mar. 04, 2015
Restricted cash			132,741
Reserves or direct write-offs recorded	0us-gaap_ProvisionForDoubtfulAccounts
Above-Market Lease Values [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Purchase price allocated to lease values in connection with the current-year acquisitions	65,203		65,203
Below-Market Lease Values [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Purchase price allocated to lease values in connection with the current-year acquisitions	371,707		371,707
Water Permit [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Restricted cash funds released date	Feb. 12, 2015
Restricted cash	0		129,700
Permit approved date	Jan. 27, 2015
Minimum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Hypothetical expected lease-up periods for estimating carrying costs	1 month
Minimum [Member] \| Leases Acquired in Place and Origination Cost [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Period of amortization for lease origination cost	1 year
Maximum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Hypothetical expected lease-up periods for estimating carrying costs	24 months
Maximum [Member] \| Leases Acquired in Place and Origination Cost [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Period of amortization for lease origination cost	10 years
Buildings and Improvements [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	39 years
Horticulture [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	25 years
Equipment and Fixtures [Member] \| Minimum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	5 years
Equipment and Fixtures [Member] \| Maximum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	10 years
Land, Buildings, Improvements and Horticulture [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Depreciation expense	512,514	259,563
Tenant Improvements [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Depreciation expense	14,398	0
Accumulated depreciation	$ 71,158		$ 56,760