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Note 5 - Share-Based Compensation (Details) - Summary of Restricted Shares (USD $)
In Thousands, except Per Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Summary of Restricted Shares [Abstract]  
Non-vested at December 31, 2013 281,835
Non-vested at December 31, 2013 $ 1.26
Non-vested at June 30, 2014 658,613
Non-vested at June 30, 2014 $ 1.12
Granted 385,652
Granted $ 1.04
Vested (8,874)
Vested $ 1.73