Note 14 - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Beginning Balance	$ (4,434)	$ (4,845)	$ (4,845)
Other Comprehensive Income (Loss) Before Reclassification	5,199		622
Amounts Reclassified from Accumulated Other Comprehensive Income	(1,768)		(211)
Net Current Period Other Comprehensive Income	3,431	$ 2,082	411
Ending Balance	$ (1,003)		$ (4,434)