Note 8 - Summary of Notes Payable (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Term Note [Member]
Total carrying amount of long-term debt	$ 5,739	$ 8,068
Total carrying amount of long-term debt	5,739	8,068
Less current portion	2,402	2,328
Note payable, net of current portion	$ 3,337	$ 5,740