Note 5 - Leasing Arrangements - Rental Income under Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Minimum rentals	$ 2,458	$ 3,161
Percentage rentals	1,172	862
Licensing fees	814	405
Other (primarily common area recoveries)	880	1,118
Total	$ 5,324	$ 5,546