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		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Basic and diluted loss per share:
Net loss	$ (622)	$ (679)	$ (4,692)	$ (2,107)
Basic and diluted loss per share:
Weighted average shares outstanding	7,836	4,623	6,512	4,547
Basic and diluted net loss per share	$ (0.08)	$ (0.15)	$ (0.72)	$ (0.46)