Note 9 - Redeemable Noncontrolling Interests - Redemption Value of the Redeemable Noncontrolling Interests (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Balance		$ 86,709	$ 91,480
Income (1)	[1]	3,240	5,822
Distributions		(3,093)	(4,563)
Balance		$ 86,856	$ 92,739

[1] Includes $1.2 million in fair market value remeasurement for the nine months ended September 30, 2015.