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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)