Note 6 - Derivatives and Hedging Activities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Foreign Exchange Contract [Member]
Note 6 - Derivatives and Hedging Activities (Details) [Line Items]
Derivative, Notional Amount	$ 31,696	$ 3,632
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	(302)	(102)
Interest Rate Swap [Member]
Note 6 - Derivatives and Hedging Activities (Details) [Line Items]
Derivative, Notional Amount	$ 60,000
Derivative, Fixed Interest Rate	0.92%
Interest Rate Derivative Liabilities, at Fair Value	$ (113)	$ (304)