Note 4 - Goodwill and Intangible Assets - Changes to Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Balance, January 1,	$ 25,010	$ 30,676	$ 33,438
Impact of foreign currency translation and adjustment	(2,456)	$ (5,666)	$ (2,762)
Impairment	$ (22,554)
Balance, December 31,		$ 25,010	$ 30,676