Note 13 - Stock-Based Compensation (Details) - Summary of Assumptions used to Value Options Granted	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Summary of Assumptions used to Value Options Granted [Abstract]
Risk–free interest rate	0.52%	0.25%
Expected volatility	17.30%	31.30%
Expected life, in years	2 years 73 days	2 years 36 days
Expected dividend yield	2.68%	2.81%