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 $)	1 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2010	May 31, 2009	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Mar. 31, 2013	Dec. 31, 2012
Organization And Summary Of Significant Accounting Policies [Line Items]
Purchase price allocated to below-market lease values in connection with the current-year acquisitions					$ 98,808
Amortization expense related to intangibles assets			29,277	2,721	54,258	13,604
Understatement of income taxes receivable and deferred tax liability			743,676		743,676			743,676
Income taxes receivable								234,891
Impairments recognized on real estate					0
Short-term investments			680,059		680,059			679,717
Total income earned			3,350		5,361
Unamortized deferred financing costs				36,000
Line of credit termination date				May 31, 2012
Accumulated amortization of deferred financing costs			49,014		49,014			34,124
Income tax prepayment			2,100,000		2,100,000		2,100,000
Uncertain tax positions, percentage					50.00%
Uncertain tax positions			0		0			0
State tax amount that will continue to be deferred			100,000		100,000
Tax liability resulting from the transfer of the San Andreas Farm	98,000	98,000
Period over which state income taxes are remitted					5 years
Domestic and State [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Federal and state deferred tax liabilities			2,200,000		2,200,000
Domestic Tax Authority [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Federal and state deferred tax liabilities			2,100,000		2,100,000
Certificate of Deposit [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Short-term investments			700,000	0	700,000	0		700,000
Certificate of deposit's maturity date					Sep. 04, 2013
U.S. Treasury Bills [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Certificate of deposit's maturity date					Jun. 27, 2013
Short-term U.S. Treasury Bills			20,000,000		20,000,000
Real Estate [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Real estate depreciation expense			148,046	87,660	283,101	172,142
Adjustment [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Understatement of income taxes receivable and deferred tax liability								$ 484,947
Building and Building Improvements [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives					39 years
Minimum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Hypothetical expected lease-up periods for estimating carrying costs					9 months
Percentage of REIT taxable income to its stockholders					90.00%
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					2 years
Minimum [Member] \| Equipment and Fixtures [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives					7 years
Maximum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Hypothetical expected lease-up periods for estimating carrying costs					18 months
Percentage of REIT taxable income to its stockholders					100.00%
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					15 years
Maximum [Member] \| Equipment and Fixtures [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives					5 years