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Note 2 - Summary of Significant Accounting Policies (Detail) - The Assumptions Utilized for Stock Option Grants (USD $)	6 Months Ended
	Jun. 30, 2012
Expected life (years)	6 years
Fair value (in Dollars per share)	$ 4.33
Minimum [Member]
Volatility	45.86%
Risk-free interest rate	1.04%
Fair value (in Dollars per share)	$ 4.23
Maximum [Member]
Volatility	46.80%
Risk-free interest rate	1.15%
Fair value (in Dollars per share)	$ 5.47

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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