Note 19 - Income Taxes - Balance Sheet Presentation of Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current deferred tax assets			$ 251
Current deferred tax liabilities			(975)
Non-current deferred tax liabilities	$ (35,382)	$ (32,654)	(66,219)
Total	$ (35,382)	$ (32,654)	$ (66,943)