Note 2 - Significant Accounting Policies (Details) - Fair Value of Options	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value of Options [Abstract]
Volatility	19.10%	21.40%	33.80%
Expected option life	3 years	3 years	3 years
Interest rate (risk free)	0.80%	0.875%	1.50%