Note 7 - Derivative Instruments (Details) - The Fair Value of the Derivative Instruments - USD ($) $ in Thousands	Sep. 30, 2015		Dec. 31, 2014
Derivative Assets (Liabilities)
Derivative Assets (Liabilities)	$ (75)		$ (618)
Foreign Exchange Forward Contracts and Put Options [Member] | Accounts Payable and Accrued Liabilities [Member]
Derivative Assets (Liabilities)
Derivative Assets (Liabilities)	(75)	[1]	(618)
Foreign Exchange Forward Contracts and Put Options [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivative Assets (Liabilities)
Derivative Assets (Liabilities)	$ 0		$ 0

[1] Estimated to be reclassified into earnings during 2015 and 2016.