Note 15 - Stock Repurchase Program (Detail) (USD $)	11 Months Ended	12 Months Ended		17 Months Ended	1 Months Ended
	Jun. 30, 2011	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Feb. 28, 2011 Minimum [Member]	Feb. 28, 2011 Maximum [Member]
Stock Repurchase Program, Authorized Amount				$ 50,000,000	$ 50,000,000	$ 70,000,000
Stock Repurchased During Period, Shares (in Shares)	4,385,289	2,485,500	1,899,789
Stock Repurchased During Period, Value	$ 70,000,000	$ (38,472,000)	$ (31,527,000)