Note 4 - Real Estate Under Development - Costs Incurred for Real Estate Development (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Property Under Development	[1]	$ 275,914	$ 241,384
Dania Pointe - Phase II, III, and IV [Member]
Property Under Development		180,216	152,111
Mill Station [Member]
Property Under Development		62,187	55,771
Promenade at Christiana [Member]
Property Under Development	[2]	$ 33,511	$ 33,502

[1] Includes capitalized costs of interest, real estate taxes, insurance, legal costs and payroll of $27.6 million and $24.9 million, as of March 31, 2019 and December 31, 2018, respectively.

[2] Project to be developed in the future.