Note 2 - Operating Property Activities - Summary of Ownership Interest and Gain on Change of Interest (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Gain on change in control of interests, net	$ 71,160
Plantation Commons [Member]
Current ownership interest	76.25%
Gain on change in control of interests, net	$ 9,793
Gordon Plaza [Member]
Current ownership interest	40.62%
Gain on change in control of interests, net	$ 395
The District at Tustin Legacy [Member]
Current ownership interest	54.27%
Gain on change in control of interests, net	$ 60,972	[1]

[1] The Company's share of this investment is subject to change and dependent upon property cash flows (54.27% as of date of consolidation).