Note 2 - Summary of Significant Accounting Policies (Detail) - The Assumptions Utilized for Stock Option Grants (USD $)	3 Months Ended
Mar. 31, 2012
Volatility	45.86%
Expected life (years)	6 years
Risk-free interest rate	1.15%
Dividend yield	0.00%
Fair value (in Dollars per share)	$ 4.23

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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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the expected term of a nonvested share or option award issued to other than an employee.

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