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Note 10 - Stock-Based Compensation Plans and Warrants (Details) - Fair Value Assumptions for Stock Options
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12 Months Ended |
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Dec. 31, 2013
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| Fair Value Assumptions for Stock Options [Abstract] | |
| Risk-free interest rate | 3.90% |
| Expected life (years) | 9 years 146 days |
| Expected volatility | 52.00% |
| Expected dividend yield | 0.00% |