Note 2 - Summary of Significant Accounting Policies (Details) - Assumptions Utilized for Stock Option Grants (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 2 - Summary of Significant Accounting Policies (Details) - Assumptions Utilized for Stock Option Grants [Line Items]
Expected life (years)	6 years	6 years	6 years
Minimum [Member]
Note 2 - Summary of Significant Accounting Policies (Details) - Assumptions Utilized for Stock Option Grants [Line Items]
Volatility	48.37%	45.86%	35.79%
Risk-free interest rate	0.97%	0.83%	1.21%
Fair value (in Dollars per share)	$ 6.63	$ 4.23	$ 3.39
Maximum [Member]
Note 2 - Summary of Significant Accounting Policies (Details) - Assumptions Utilized for Stock Option Grants [Line Items]
Volatility	49.10%	48.36%	44.46%
Risk-free interest rate	1.73%	1.15%	2.54%
Fair value (in Dollars per share)	$ 12.61	$ 6.54	$ 9.28