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Note 12 - Stock-Based Compensation and Other Benefit Plans (Details) - Weighted Average Assumptions
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Weighted Average Assumptions [Abstract]      
Risk-free interest rate 1.02% 0.68% 1.59%
Expected life of the option in years 5 years 80 days 5 years 80 days 5 years 80 days
Expected volatility 53.70% 60.30% 63.10%