Note 3 - Real Estate Under Development - Costs Incurred for Real Estate Development (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Development in Process		$ 391,388	$ 335,028
Grand Parkway Marketplace [Member]
Development in Process		106,752	94,841
Dania Pointe [Member]
Development in Process	[1]	114,532	107,113
Promenade at Christiana [Member]
Development in Process		26,041	25,521
Owings Mills [Member]
Development in Process		26,787	25,119
Lincoln Square [Member]
Development in Process	[2]	34,836
Avenues Walk [Member]
Development in Process		73,048	73,048
Staten Island Plaza [Member]
Development in Process	[3]	$ 9,392	$ 9,386

[1] Includes $45.9 million of land held for future development.

[2] During the three months ended March 31, 2017, KIM Lincoln, LLC ("KIM Lincoln"), a wholly owned subsidiary of the Company, and Lincoln Square Property, LP ("Lincoln Member") entered in a joint venture agreement wherein KIM Lincoln has a 90% controlling interest and Lincoln Member has a 10% noncontrolling interest. The joint venture acquired land parcels in Philadelphia, PA to be held for development for a gross purchase price of $10.0 million. Based upon the Company's intent to develop the property, the Company allocated the gross purchase price to Real estate under development on the Company's Condensed Consolidated Balance Sheets. This joint venture is accounted for as a consolidated VIE (see Footnote 6).

[3] Land held for future development.