Note 13 - Fair Value Measurements - Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis (Details) - Fair Value, Measurements, Recurring [Member] - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Foreign currency forwards, assets (liabilities)	$ 83	$ 125
Total	$ 83	$ 125