Note 6 - Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Compensation expense	$ 252	$ 463	$ 532	$ 920
Discretionary contribution	$ 10	$ 153	$ 1,392	$ 2,249
Guaranteed annual return	5.25%	5.25%	5.25%	5.25%