Note 4 - Derivative Financial Instruments - Fair Value of Derivative Instruments (Details) - Foreign Exchange Forward [Member] $ in Thousands	Sep. 30, 2015 USD ($)
Other Current Liabilities [Member]
Gross amounts of recognized liabilities	$ 342
Net Amount	342
Other Noncurrent Liabilities [Member]
Gross amounts of recognized liabilities	84
Net Amount	84
Gross amounts of recognized liabilities	426
Net Amount	$ 426