Note 12 - Stock-Based Compensation and Other Benefit Plans (Details) - Weighted-Average Exercise Price and Weighted-Average Grant Date Fair Value (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Weighted-Average Exercise Price and Weighted-Average Grant Date Fair Value [Abstract]
Weighted-average exercise price of the stock on the date of grant	$ 11.43	$ 5.57	$ 9.13
Weighted-average grant date fair value on the date of grant	$ 5.42	$ 2.89	$ 5.00