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Note 12 - Stock Based Compensation (Details) - Stock Option and Restricted Stock Awards (USD $)
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Stock Option and Restricted Stock Awards [Abstract]    
Equity awards outstanding at December 31, 2013 861,905 1,878,600
Equity awards outstanding at December 31, 2013 (in Dollars per share) $ 12.30  
Equity awards outstanding at December 31, 2013 2,112  
Equity awards outstanding at December 31, 2013 (in Dollars per share) $ 16.29  
Equity awards granted 1,045,433  
Equity awards granted (in Dollars per share) $ 3.55  
Equity awards granted 19,250  
Equity awards granted (in Dollars per share) $ 3.55  
Equity awards exercised (6,091)  
Equity awards exercised (in Dollars per share) $ 8.00  
Equity awards forfeited, cancelled or expired (44,009)  
Equity awards forfeited, cancelled or expired (in Dollars per share) $ 22.31  
Equity awards outstanding at June 30, 2014 1,863,329 1,878,600
Equity awards outstanding at June 30, 2014 (in Dollars per share) $ 7.15  
Equity awards outstanding at June 30, 2014 15,271  
Equity awards outstanding at June 30, 2014 (in Dollars per share) $ 3.54  
Equity awards outstanding at June 30, 2014 8 years 7 days  
Aggregate intrinsic value of outstanding awards at June 30, 2014 54,039  
Equity awards exercisable at June 30, 2014 1,033,290  
Equity awards exercisable at June 30, 2014 (in Dollars per share) $ 10.26  
Equity awards exercisable at June 30, 2014 6 years 262 days