Note 2 - Fair Value of Financial Assets Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Inputs, Level 2 [Member] | Foreign Currency Derivative Asset [Member]
Financial instruments, fair value		$ 848
Fair Value, Inputs, Level 2 [Member] | Foreign Currency Derivative Liability [Member]
Financial instruments, fair value	$ (2,122)	(1,215)
Fair Value, Inputs, Level 3 [Member] | Contingent Consideration [Member]
Financial instruments, fair value	(7,635)
Foreign Currency Derivative Asset [Member]
Financial instruments, fair value		848
Foreign Currency Derivative Liability [Member]
Financial instruments, fair value	(2,122)	$ (1,215)
Contingent Consideration [Member]
Financial instruments, fair value	$ (7,635)