Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details) - Reconciliation of Basic and Diluted Loss per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Basic and diluted loss per share:
Net loss	$ (403)	$ (1,651)	$ (5,095)	$ (3,758)
Basic and diluted loss per share:
Weighted average shares outstanding	8,781	4,916	7,276	4,671
Basic and diluted net loss per share	$ (0.05)	$ (0.34)	$ (0.70)	$ (0.80)