Note 17 - Share-based Compensation (Details) - Summary of Information Concerning Stock Options Outstanding Including the Related Transactions under the Stock Option Plans (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Summary of Information Concerning Stock Options Outstanding Including the Related Transactions under the Stock Option Plans [Abstract]
Options Outstanding as of December 31, 2013		57,139
Options Outstanding as of December 31, 2013		$ 17.83
Granted	1,591
Granted	$ 21.01
Exercised	(8,000)
Exercised	$ 12.33
Forfeited and Expired	(606)
Forfeited and Expired	$ 17.30
Options Outstanding as of September 30, 2014	50,124	57,139
Options Outstanding as of September 30, 2014	$ 18.81	$ 17.83
Options Outstanding as of September 30, 2014	4 years 244 days
Options Outstanding as of September 30, 2014	$ 156,052
Options Expected to Vest as of September 30, 2014	49,998
Options Expected to Vest as of September 30, 2014	$ 18.82
Options Expected to Vest as of September 30, 2014	4 years 244 days
Options Expected to Vest as of September 30, 2014	155,206
Options Exercisable as of September 30, 2014	36,845
Options Exercisable as of September 30, 2014	$ 20.39
Options Exercisable as of September 30, 2014	3 years 171 days
Options Exercisable as of September 30, 2014	$ 78,022