Gladstone Land Corporation Annual report pursuant to Section 13 and 15(d)

Borrowings - Farm Credit Loan Terms (Details)

Borrowings - Farm Credit Loan Terms (Details)	1 Months Ended			12 Months Ended
Borrowings - Farm Credit Loan Terms (Details)	Apr. 30, 2017 USD ($)	Feb. 28, 2017 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2017 USD ($) debt_instrument	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 20, 2017	Nov. 30, 2017	Sep. 08, 2017	Aug. 09, 2017	Jul. 17, 2017	Jul. 13, 2017	Jun. 30, 2017	Jun. 14, 2017	Apr. 01, 2017	Feb. 01, 2017
Debt Instrument [Line Items]
Number of debt instruments issued \| debt_instrument				14
Other income				$ 206,000	$ 109,000	$ 49,000
Farm Credit Central Florida Notes Payable
Debt Instrument [Line Items]
Number of debt instruments issued \| debt_instrument				7
Principal Outstanding				$ 24,664,000
Interest rate (as percent)				4.29%								4.47%
Other income	$ 124,000		$ 94,000
Reduction in interest rate (as percent)	(15.80%)			(17.20%)
Reduction in interest rate spread, basis points (as percent)															(0.55%)
Farm Credit West Note Payable
Debt Instrument [Line Items]
Number of debt instruments issued \| debt_instrument				4
Principal Outstanding				$ 24,222,000
Interest rate (as percent)				4.02%			4.67%				4.31%
Other income		$ 59,000
Reduction in interest rate (as percent)		(21.30%)
Reduction in interest rate spread, basis points (as percent)													(0.61%)			(0.76%)
Cape Fear Farm Credit Notes Payable
Debt Instrument [Line Items]
Number of debt instruments issued \| debt_instrument				1
Principal Outstanding				$ 1,301,000
Interest rate (as percent)				4.41%										4.41%
Farm Credit FL Note Payable
Debt Instrument [Line Items]
Number of debt instruments issued \| debt_instrument				1
Principal Outstanding				$ 5,820,000
Interest rate (as percent)				4.70%						4.70%
Northwest Farm Credit Services Notes Payable
Debt Instrument [Line Items]
Number of debt instruments issued \| debt_instrument				1
Principal Outstanding				$ 5,412,000
Interest rate (as percent)				4.41%					4.41%
Farm Credit Notes Payable
Debt Instrument [Line Items]
Principal Outstanding				$ 61,419,000
Hillsborough, FL
Debt Instrument [Line Items]
Interest rate (as percent)								2.90%