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Note 13 - Stock-Based Compensation (Details) - Fair Value Assumption (2012 Omnibus Incentive Plan [Member])
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
2012 Omnibus Incentive Plan [Member]
       
Note 13 - Stock-Based Compensation (Details) - Fair Value Assumption [Line Items]        
Weighted-average volatility 86.00% 83.00% 86.00% 84.00%
Weighted-average risk-free interest rate 1.55% 0.68% 1.21% 0.64%
Weighted-average expected life in years 5 years 292 days 5 years 292 days 5 years 292 days 5 years 219 days
Dividend yield 0.00% 0.00% 0.00% 0.00%