Note 12 - Stock Incentive and Employee Benefit Plans (Detail) - Unrecognized Compensation Expense (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Unrecognized Expense (in Dollars)	$ 10,681	$ 3,765	$ 7,799
Weighted Average Period (years)	2 years	1 year 219 days	1 year 255 days
Stock Options and Stock Appreciation Rights [Member]
Unrecognized Expense (in Dollars)	4,395	3,765	7,799
Weighted Average Period (years)	1 year 255 days	1 year 219 days	1 year 255 days
Restricted Stock [Member]
Unrecognized Expense (in Dollars)	1,098
Weighted Average Period (years)	2 years 73 days
Performance Shares [Member]
Unrecognized Expense (in Dollars)	$ 5,188
Weighted Average Period (years)	2 years 73 days