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Note 9 - Shareholders' Equity (Detail) - Fair Value Of Options (USD $)	12 Months Ended
	Dec. 31, 2010
Weighted average fair value of options granted (in Dollars per share)	$ 3.18
Expected stock price volatility	92.00%
Risk-free interest rate	1.43%
Expected life of options (years)	2 years 328 days

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.

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