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

Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

Subsequent Events - Additional Information (Detail) (USD $)	3 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Apr. 09, 2015	May 08, 2015	May 15, 2015	Apr. 08, 2015	Apr. 13, 2015 Renewal_Options	Dec. 31, 2014
Subsequent Event [Line Items]
Rental income	$ 2,622,327	$ 1,495,636
Common stock, shares issued	7,753,717us-gaap_CommonStockSharesIssued							7,753,717us-gaap_CommonStockSharesIssued
Colding Loop Note [Member] \| LIBOR [Member] \| May 1, 2020 to February 1, 2030 [Member]
Subsequent Event [Line Items]
Credit notes payable interest rate there after, Description	One-month LIBOR plus a spread of 3.00%
Percentage added to LIBOR	3.00%
Subsequent Event [Member] \| Keysville Note [Member]
Subsequent Event [Line Items]
Aggregate notes payable			900,000
Maturity Date			May 01, 2020
Fixed interest rate			3.20%
Subsequent Event [Member] \| Colding Loop Note [Member] \| Through May 1, 2020 [Member]
Subsequent Event [Line Items]
Aggregate notes payable				2,600,000
Maturity Date				May 01, 2030
Fixed interest rate				2.90%
Subsequent Event [Member] \| Follow-on Offering [Member]
Subsequent Event [Line Items]
Common stock, shares issued					1,250,000
Price per share					$ 11.40
Gross proceeds from issuance of common stock					14,300,000
Net proceeds after deducting offering expenses					13,300,000
Proceeds from common stock use to repay MetLife Line of Credit					8,400,000
Subsequent Event [Member] \| Over-Allotment Option [Member]
Subsequent Event [Line Items]
Additional common stock shares issued					187,500
Subsequent Event [Member] \| Santa Clara Avenue [Member]
Subsequent Event [Line Items]
Rental income						1,303,000
Percentage increase in lease amount						5.80%
Maturity date of lease						Jul. 31, 2017
Lease renewal term						2 years
Subsequent Event [Member] \| Dalton Lane [Member]
Subsequent Event [Line Items]
Rental income							$ 164,000
Percentage increase in lease amount							16.80%
Maturity date of lease							Oct. 31, 2020
Lease renewal term							5 years
Additional extension period of under the option of tenant							5 years
Number of options granted to extend the lease							1