Note 5 - Fair Value Measurement and Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Values on a Recurring Basis (Details) $ in Thousands	Sep. 30, 2016 USD ($)
Liabilities:
Contingent acquisition consideration	$ 75
Total liabilities	75
Fair Value, Inputs, Level 3 [Member]
Liabilities:
Contingent acquisition consideration	75
Total liabilities	$ 75