Note 14 - Stock-Based Compensation (Details) - Assumptions Used to Calculate Fair Value of Stock-Based Award on the Date of Grant	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
For stock options issued by the Company:
Risk-free interest rates	0.80%	1.00%	2.20%
Expected lives (in years)	4 years 219 days	5 years	5 years 36 days
Dividend yield	0.71%	0.81%	0.80%
Expected volatility	37.80%	47.20%	46.40%
Forfeiture rate	5.60%	6.40%	7.50%