Note 2 - Operating Property Activities (Details) (USD $)	3 Months Ended					3 Months Ended		1 Months Ended				3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2014 Assets Held-for-sale [Member] Two Operating Properties and an Outparcel [Member]	Mar. 31, 2014 Initial Dispositions [Member] Mexico [Member] Operating Properties [Member]	Mar. 31, 2014 Initial Dispositions [Member] Operating Properties [Member]	Mar. 31, 2014 Initial Dispositions [Member]	Jan. 31, 2014 Corporate Joint Venture [Member] LaSalle Properties [Member]	Mar. 31, 2014 Redeemable Noncontrolling Interests [Member] Quail Corners [Member]	Mar. 31, 2014 Kimco Realty Corporation [Member] Quail Corners [Member]	Mar. 31, 2014 Quail Corners' Seller [Member] Quail Corners [Member]	Mar. 31, 2014 Continuing Operations [Member]	Mar. 31, 2013 Continuing Operations [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Number of Real Estate Properties					3	9		3
Equity Method Investment, Ownership Percentage								11.00%
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	$ 3,744,000	$ 23,170,000						$ 3,700,000
Noncontrolling Interest, Ownership Percentage by Parent										65.40%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners											34.60%
Redeemable Noncontrolling Interest, Equity, Fair Value									4,900,000
Sales of Real Estate						98,500,000
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax	(9,337,000)	(2,496,000)					(9,300,000)
Impairment of Real Estate							2,200,000
Asset Impairment Charges	6,893,000	3,229,000										3,832,000	398,000
Real Estate Held-for-sale				10,200,000
Fair Value of Real Estate	$ 9,727,000		$ 217,529,000	$ 6,400,000