Note 3 - Share-based Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014
Restricted Stock Units (RSUs) [Member]
Note 3 - Share-based Compensation (Details) [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)	$ 36,000	$ 36,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		3 years 328 days
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	747,153	777,088
Performance Shares [Member]
Note 3 - Share-based Compensation (Details) [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)	10,800	10,800
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		2 years 328 days
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	81,075	81,075
Employee Stock Option [Member]
Note 3 - Share-based Compensation (Details) [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)	$ 33	$ 33
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	48,600	328,600