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Note 6 - Stock Based Compensation (Details) - Valuation Assumptions of Stock Options (USD $)
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12 Months Ended | ||
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Dec. 29, 2013
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Dec. 30, 2012
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Jan. 01, 2012
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| Black-Scholes weighted-average assumptions | |||
| Expected dividend yield | 0.00% | 0.00% | 0.00% |
| Expected volatility | 69.10% | 83.00% | 92.60% |
| Risk-free interest rate | 0.40% | 0.50% | 0.67% |
| Expected option life in years | 3 years 255 days | 4 years | 4 years 73 days |
| Weighted-average stock option fair value per option granted (in Dollars per share) | $ 1.03 | $ 1.86 | $ 1.08 |
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- Details
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- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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