Note 16 - Net Loss and Net Loss Per Share - Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Net loss	$ (10,310)	$ (6,697)
Weighted-average shares used in computing net loss per share, basic and diluted (in shares)	100,419,402	18,723,511
Net loss per share, basic and diluted (in dollars per share)	$ (0.10)	$ (0.36)