Note 3 - Summary of Other Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Management and Accounting Services Fees [Member]
Other Revenues	$ 3,506	$ 3,532	$ 7,255	$ 7,036
Rental Income [Member]
Other Revenues	5,435	4,776	11,005	9,578
Insurance Services [Member]
Other Revenues	1,815	1,900	3,739	3,607
Other Income [Member]
Other Revenues	525	261	764	594
Other Revenues	$ 11,281	$ 10,469	$ 22,763	$ 20,815